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Linux 4.4.145
[linux/fpc-iii.git] / drivers / net / wireless / mwifiex / cfg80211.c
blob9a8982f581c5b5e1a205ea6fd18e1c688eab9774
1 /*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011-2014, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20 #include "cfg80211.h"
21 #include "main.h"
22 #include "11n.h"
23
24 static char *reg_alpha2;
25 module_param(reg_alpha2, charp, 0);
26
27 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
28 {
29 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
30 BIT(NL80211_IFTYPE_P2P_GO) |
31 BIT(NL80211_IFTYPE_P2P_CLIENT),
32 },
33 {
34 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
35 },
36 };
37
38 static const struct ieee80211_iface_combination
39 mwifiex_iface_comb_ap_sta = {
40 .limits = mwifiex_ap_sta_limits,
41 .num_different_channels = 1,
42 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
43 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
44 .beacon_int_infra_match = true,
45 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
46 BIT(NL80211_CHAN_WIDTH_20) |
47 BIT(NL80211_CHAN_WIDTH_40),
48 };
49
50 static const struct ieee80211_iface_combination
51 mwifiex_iface_comb_ap_sta_vht = {
52 .limits = mwifiex_ap_sta_limits,
53 .num_different_channels = 1,
54 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
55 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
56 .beacon_int_infra_match = true,
57 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
58 BIT(NL80211_CHAN_WIDTH_20) |
59 BIT(NL80211_CHAN_WIDTH_40) |
60 BIT(NL80211_CHAN_WIDTH_80),
61 };
62
63 static const struct
64 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
65 .limits = mwifiex_ap_sta_limits,
66 .num_different_channels = 2,
67 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
68 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
69 .beacon_int_infra_match = true,
70 };
71
72 /*
73 * This function maps the nl802.11 channel type into driver channel type.
74 *
75 * The mapping is as follows -
76 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
77 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
78 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
79 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
80 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
81 */
82 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
83 {
84 switch (chan_type) {
85 case NL80211_CHAN_NO_HT:
86 case NL80211_CHAN_HT20:
87 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
88 case NL80211_CHAN_HT40PLUS:
89 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
90 case NL80211_CHAN_HT40MINUS:
91 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
92 default:
93 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
94 }
95 }
96
97 /* This function maps IEEE HT secondary channel type to NL80211 channel type
98 */
99 u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
100 {
101 switch (second_chan_offset) {
102 case IEEE80211_HT_PARAM_CHA_SEC_NONE:
103 return NL80211_CHAN_HT20;
104 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
105 return NL80211_CHAN_HT40PLUS;
106 case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
107 return NL80211_CHAN_HT40MINUS;
108 default:
109 return NL80211_CHAN_HT20;
110 }
111 }
112
113 /*
114 * This function checks whether WEP is set.
115 */
116 static int
117 mwifiex_is_alg_wep(u32 cipher)
118 {
119 switch (cipher) {
120 case WLAN_CIPHER_SUITE_WEP40:
121 case WLAN_CIPHER_SUITE_WEP104:
122 return 1;
123 default:
124 break;
125 }
126
127 return 0;
128 }
129
130 /*
131 * This function retrieves the private structure from kernel wiphy structure.
132 */
133 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
134 {
135 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
136 }
137
138 /*
139 * CFG802.11 operation handler to delete a network key.
140 */
141 static int
142 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
143 u8 key_index, bool pairwise, const u8 *mac_addr)
144 {
145 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
146 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
147 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
148
149 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
150 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
151 return -EFAULT;
152 }
153
154 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
155 return 0;
156 }
157
158 /*
159 * This function forms an skb for management frame.
160 */
161 static int
162 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
163 {
164 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
165 u16 pkt_len;
166 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
167
168 pkt_len = len + ETH_ALEN;
169
170 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
171 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
172 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
173
174 memcpy(skb_push(skb, sizeof(tx_control)),
175 &tx_control, sizeof(tx_control));
176
177 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
178
179 /* Add packet data and address4 */
180 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
181 sizeof(struct ieee80211_hdr_3addr));
182 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
183 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
184 buf + sizeof(struct ieee80211_hdr_3addr),
185 len - sizeof(struct ieee80211_hdr_3addr));
186
187 skb->priority = LOW_PRIO_TID;
188 __net_timestamp(skb);
189
190 return 0;
191 }
192
193 /*
194 * CFG802.11 operation handler to transmit a management frame.
195 */
196 static int
197 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
198 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
199 {
200 const u8 *buf = params->buf;
201 size_t len = params->len;
202 struct sk_buff *skb;
203 u16 pkt_len;
204 const struct ieee80211_mgmt *mgmt;
205 struct mwifiex_txinfo *tx_info;
206 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
207
208 if (!buf || !len) {
209 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
210 return -EFAULT;
211 }
212
213 mgmt = (const struct ieee80211_mgmt *)buf;
214 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
215 ieee80211_is_probe_resp(mgmt->frame_control)) {
216 /* Since we support offload probe resp, we need to skip probe
217 * resp in AP or GO mode */
218 mwifiex_dbg(priv->adapter, INFO,
219 "info: skip to send probe resp in AP or GO mode\n");
220 return 0;
221 }
222
223 pkt_len = len + ETH_ALEN;
224 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
225 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
226 pkt_len + sizeof(pkt_len));
227
228 if (!skb) {
229 mwifiex_dbg(priv->adapter, ERROR,
230 "allocate skb failed for management frame\n");
231 return -ENOMEM;
232 }
233
234 tx_info = MWIFIEX_SKB_TXCB(skb);
235 memset(tx_info, 0, sizeof(*tx_info));
236 tx_info->bss_num = priv->bss_num;
237 tx_info->bss_type = priv->bss_type;
238 tx_info->pkt_len = pkt_len;
239
240 mwifiex_form_mgmt_frame(skb, buf, len);
241 *cookie = prandom_u32() | 1;
242
243 if (ieee80211_is_action(mgmt->frame_control))
244 skb = mwifiex_clone_skb_for_tx_status(priv,
245 skb,
246 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
247 else
248 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
249 GFP_ATOMIC);
250
251 mwifiex_queue_tx_pkt(priv, skb);
252
253 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
254 return 0;
255 }
256
257 /*
258 * CFG802.11 operation handler to register a mgmt frame.
259 */
260 static void
261 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
262 struct wireless_dev *wdev,
263 u16 frame_type, bool reg)
264 {
265 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
266 u32 mask;
267
268 if (reg)
269 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
270 else
271 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
272
273 if (mask != priv->mgmt_frame_mask) {
274 priv->mgmt_frame_mask = mask;
275 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
276 HostCmd_ACT_GEN_SET, 0,
277 &priv->mgmt_frame_mask, false);
278 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
279 }
280 }
281
282 /*
283 * CFG802.11 operation handler to remain on channel.
284 */
285 static int
286 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
287 struct wireless_dev *wdev,
288 struct ieee80211_channel *chan,
289 unsigned int duration, u64 *cookie)
290 {
291 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
292 int ret;
293
294 if (!chan || !cookie) {
295 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
296 return -EINVAL;
297 }
298
299 if (priv->roc_cfg.cookie) {
300 mwifiex_dbg(priv->adapter, INFO,
301 "info: ongoing ROC, cookie = 0x%llx\n",
302 priv->roc_cfg.cookie);
303 return -EBUSY;
304 }
305
306 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
307 duration);
308
309 if (!ret) {
310 *cookie = prandom_u32() | 1;
311 priv->roc_cfg.cookie = *cookie;
312 priv->roc_cfg.chan = *chan;
313
314 cfg80211_ready_on_channel(wdev, *cookie, chan,
315 duration, GFP_ATOMIC);
316
317 mwifiex_dbg(priv->adapter, INFO,
318 "info: ROC, cookie = 0x%llx\n", *cookie);
319 }
320
321 return ret;
322 }
323
324 /*
325 * CFG802.11 operation handler to cancel remain on channel.
326 */
327 static int
328 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
329 struct wireless_dev *wdev, u64 cookie)
330 {
331 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
332 int ret;
333
334 if (cookie != priv->roc_cfg.cookie)
335 return -ENOENT;
336
337 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
338 &priv->roc_cfg.chan, 0);
339
340 if (!ret) {
341 cfg80211_remain_on_channel_expired(wdev, cookie,
342 &priv->roc_cfg.chan,
343 GFP_ATOMIC);
344
345 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
346
347 mwifiex_dbg(priv->adapter, INFO,
348 "info: cancel ROC, cookie = 0x%llx\n", cookie);
349 }
350
351 return ret;
352 }
353
354 /*
355 * CFG802.11 operation handler to set Tx power.
356 */
357 static int
358 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
359 struct wireless_dev *wdev,
360 enum nl80211_tx_power_setting type,
361 int mbm)
362 {
363 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
364 struct mwifiex_private *priv;
365 struct mwifiex_power_cfg power_cfg;
366 int dbm = MBM_TO_DBM(mbm);
367
368 if (type == NL80211_TX_POWER_FIXED) {
369 power_cfg.is_power_auto = 0;
370 power_cfg.power_level = dbm;
371 } else {
372 power_cfg.is_power_auto = 1;
373 }
374
375 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
376
377 return mwifiex_set_tx_power(priv, &power_cfg);
378 }
379
380 /*
381 * CFG802.11 operation handler to set Power Save option.
382 *
383 * The timeout value, if provided, is currently ignored.
384 */
385 static int
386 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
387 struct net_device *dev,
388 bool enabled, int timeout)
389 {
390 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
391 u32 ps_mode;
392
393 if (timeout)
394 mwifiex_dbg(priv->adapter, INFO,
395 "info: ignore timeout value for IEEE Power Save\n");
396
397 ps_mode = enabled;
398
399 return mwifiex_drv_set_power(priv, &ps_mode);
400 }
401
402 /*
403 * CFG802.11 operation handler to set the default network key.
404 */
405 static int
406 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
407 u8 key_index, bool unicast,
408 bool multicast)
409 {
410 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
411
412 /* Return if WEP key not configured */
413 if (!priv->sec_info.wep_enabled)
414 return 0;
415
416 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
417 priv->wep_key_curr_index = key_index;
418 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
419 NULL, 0)) {
420 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
421 return -EFAULT;
422 }
423
424 return 0;
425 }
426
427 /*
428 * CFG802.11 operation handler to add a network key.
429 */
430 static int
431 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
432 u8 key_index, bool pairwise, const u8 *mac_addr,
433 struct key_params *params)
434 {
435 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
436 struct mwifiex_wep_key *wep_key;
437 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
438 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
439
440 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
441 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
442 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
443 if (params->key && params->key_len) {
444 wep_key = &priv->wep_key[key_index];
445 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
446 memcpy(wep_key->key_material, params->key,
447 params->key_len);
448 wep_key->key_index = key_index;
449 wep_key->key_length = params->key_len;
450 priv->sec_info.wep_enabled = 1;
451 }
452 return 0;
453 }
454
455 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
456 key_index, peer_mac, 0)) {
457 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
458 return -EFAULT;
459 }
460
461 return 0;
462 }
463
464 /*
465 * This function sends domain information to the firmware.
466 *
467 * The following information are passed to the firmware -
468 * - Country codes
469 * - Sub bands (first channel, number of channels, maximum Tx power)
470 */
471 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
472 {
473 u8 no_of_triplet = 0;
474 struct ieee80211_country_ie_triplet *t;
475 u8 no_of_parsed_chan = 0;
476 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
477 u8 i, flag = 0;
478 enum ieee80211_band band;
479 struct ieee80211_supported_band *sband;
480 struct ieee80211_channel *ch;
481 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
482 struct mwifiex_private *priv;
483 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
484
485 /* Set country code */
486 domain_info->country_code[0] = adapter->country_code[0];
487 domain_info->country_code[1] = adapter->country_code[1];
488 domain_info->country_code[2] = ' ';
489
490 band = mwifiex_band_to_radio_type(adapter->config_bands);
491 if (!wiphy->bands[band]) {
492 mwifiex_dbg(adapter, ERROR,
493 "11D: setting domain info in FW\n");
494 return -1;
495 }
496
497 sband = wiphy->bands[band];
498
499 for (i = 0; i < sband->n_channels ; i++) {
500 ch = &sband->channels[i];
501 if (ch->flags & IEEE80211_CHAN_DISABLED)
502 continue;
503
504 if (!flag) {
505 flag = 1;
506 first_chan = (u32) ch->hw_value;
507 next_chan = first_chan;
508 max_pwr = ch->max_power;
509 no_of_parsed_chan = 1;
510 continue;
511 }
512
513 if (ch->hw_value == next_chan + 1 &&
514 ch->max_power == max_pwr) {
515 next_chan++;
516 no_of_parsed_chan++;
517 } else {
518 t = &domain_info->triplet[no_of_triplet];
519 t->chans.first_channel = first_chan;
520 t->chans.num_channels = no_of_parsed_chan;
521 t->chans.max_power = max_pwr;
522 no_of_triplet++;
523 first_chan = (u32) ch->hw_value;
524 next_chan = first_chan;
525 max_pwr = ch->max_power;
526 no_of_parsed_chan = 1;
527 }
528 }
529
530 if (flag) {
531 t = &domain_info->triplet[no_of_triplet];
532 t->chans.first_channel = first_chan;
533 t->chans.num_channels = no_of_parsed_chan;
534 t->chans.max_power = max_pwr;
535 no_of_triplet++;
536 }
537
538 domain_info->no_of_triplet = no_of_triplet;
539
540 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
541
542 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
543 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
544 mwifiex_dbg(adapter, INFO,
545 "11D: setting domain info in FW\n");
546 return -1;
547 }
548
549 return 0;
550 }
551
552 /*
553 * CFG802.11 regulatory domain callback function.
554 *
555 * This function is called when the regulatory domain is changed due to the
556 * following reasons -
557 * - Set by driver
558 * - Set by system core
559 * - Set by user
560 * - Set bt Country IE
561 */
562 static void mwifiex_reg_notifier(struct wiphy *wiphy,
563 struct regulatory_request *request)
564 {
565 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
566 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
567 MWIFIEX_BSS_ROLE_ANY);
568 mwifiex_dbg(adapter, INFO,
569 "info: cfg80211 regulatory domain callback for %c%c\n",
570 request->alpha2[0], request->alpha2[1]);
571
572 switch (request->initiator) {
573 case NL80211_REGDOM_SET_BY_DRIVER:
574 case NL80211_REGDOM_SET_BY_CORE:
575 case NL80211_REGDOM_SET_BY_USER:
576 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
577 break;
578 default:
579 mwifiex_dbg(adapter, ERROR,
580 "unknown regdom initiator: %d\n",
581 request->initiator);
582 return;
583 }
584
585 /* Don't send world or same regdom info to firmware */
586 if (strncmp(request->alpha2, "00", 2) &&
587 strncmp(request->alpha2, adapter->country_code,
588 sizeof(request->alpha2))) {
589 memcpy(adapter->country_code, request->alpha2,
590 sizeof(request->alpha2));
591 mwifiex_send_domain_info_cmd_fw(wiphy);
592 mwifiex_dnld_txpwr_table(priv);
593 }
594 }
595
596 /*
597 * This function sets the fragmentation threshold.
598 *
599 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
600 * and MWIFIEX_FRAG_MAX_VALUE.
601 */
602 static int
603 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
604 {
605 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
606 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
607 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
608
609 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
610 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
611 &frag_thr, true);
612 }
613
614 /*
615 * This function sets the RTS threshold.
616
617 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
618 * and MWIFIEX_RTS_MAX_VALUE.
619 */
620 static int
621 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
622 {
623 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
624 rts_thr = MWIFIEX_RTS_MAX_VALUE;
625
626 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
627 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
628 &rts_thr, true);
629 }
630
631 /*
632 * CFG802.11 operation handler to set wiphy parameters.
633 *
634 * This function can be used to set the RTS threshold and the
635 * Fragmentation threshold of the driver.
636 */
637 static int
638 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
639 {
640 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
641 struct mwifiex_private *priv;
642 struct mwifiex_uap_bss_param *bss_cfg;
643 int ret;
644
645 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
646
647 switch (priv->bss_role) {
648 case MWIFIEX_BSS_ROLE_UAP:
649 if (priv->bss_started) {
650 mwifiex_dbg(adapter, ERROR,
651 "cannot change wiphy params when bss started");
652 return -EINVAL;
653 }
654
655 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
656 if (!bss_cfg)
657 return -ENOMEM;
658
659 mwifiex_set_sys_config_invalid_data(bss_cfg);
660
661 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
662 bss_cfg->rts_threshold = wiphy->rts_threshold;
663 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
664 bss_cfg->frag_threshold = wiphy->frag_threshold;
665 if (changed & WIPHY_PARAM_RETRY_LONG)
666 bss_cfg->retry_limit = wiphy->retry_long;
667
668 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
669 HostCmd_ACT_GEN_SET,
670 UAP_BSS_PARAMS_I, bss_cfg,
671 false);
672
673 kfree(bss_cfg);
674 if (ret) {
675 mwifiex_dbg(adapter, ERROR,
676 "Failed to set wiphy phy params\n");
677 return ret;
678 }
679 break;
680
681 case MWIFIEX_BSS_ROLE_STA:
682 if (priv->media_connected) {
683 mwifiex_dbg(adapter, ERROR,
684 "cannot change wiphy params when connected");
685 return -EINVAL;
686 }
687 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
688 ret = mwifiex_set_rts(priv,
689 wiphy->rts_threshold);
690 if (ret)
691 return ret;
692 }
693 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
694 ret = mwifiex_set_frag(priv,
695 wiphy->frag_threshold);
696 if (ret)
697 return ret;
698 }
699 break;
700 }
701
702 return 0;
703 }
704
705 static int
706 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
707 {
708 u16 mode = P2P_MODE_DISABLE;
709
710 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
711 HostCmd_ACT_GEN_SET, 0, &mode, true))
712 return -1;
713
714 return 0;
715 }
716
717 /*
718 * This function initializes the functionalities for P2P client.
719 * The P2P client initialization sequence is:
720 * disable -> device -> client
721 */
722 static int
723 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
724 {
725 u16 mode;
726
727 if (mwifiex_cfg80211_deinit_p2p(priv))
728 return -1;
729
730 mode = P2P_MODE_DEVICE;
731 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
732 HostCmd_ACT_GEN_SET, 0, &mode, true))
733 return -1;
734
735 mode = P2P_MODE_CLIENT;
736 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
737 HostCmd_ACT_GEN_SET, 0, &mode, true))
738 return -1;
739
740 return 0;
741 }
742
743 /*
744 * This function initializes the functionalities for P2P GO.
745 * The P2P GO initialization sequence is:
746 * disable -> device -> GO
747 */
748 static int
749 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
750 {
751 u16 mode;
752
753 if (mwifiex_cfg80211_deinit_p2p(priv))
754 return -1;
755
756 mode = P2P_MODE_DEVICE;
757 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
758 HostCmd_ACT_GEN_SET, 0, &mode, true))
759 return -1;
760
761 mode = P2P_MODE_GO;
762 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
763 HostCmd_ACT_GEN_SET, 0, &mode, true))
764 return -1;
765
766 return 0;
767 }
768
769 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
770 {
771 struct mwifiex_adapter *adapter = priv->adapter;
772 unsigned long flags;
773
774 priv->mgmt_frame_mask = 0;
775 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
776 HostCmd_ACT_GEN_SET, 0,
777 &priv->mgmt_frame_mask, false)) {
778 mwifiex_dbg(adapter, ERROR,
779 "could not unregister mgmt frame rx\n");
780 return -1;
781 }
782
783 mwifiex_deauthenticate(priv, NULL);
784
785 spin_lock_irqsave(&adapter->main_proc_lock, flags);
786 adapter->main_locked = true;
787 if (adapter->mwifiex_processing) {
788 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
789 flush_workqueue(adapter->workqueue);
790 } else {
791 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
792 }
793
794 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
795 adapter->rx_locked = true;
796 if (adapter->rx_processing) {
797 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
798 flush_workqueue(adapter->rx_workqueue);
799 } else {
800 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
801 }
802
803 mwifiex_free_priv(priv);
804 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
805 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
806 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
807
808 return 0;
809 }
810
811 static int
812 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
813 struct net_device *dev,
814 enum nl80211_iftype type)
815 {
816 struct mwifiex_adapter *adapter = priv->adapter;
817 unsigned long flags;
818
819 mwifiex_init_priv(priv);
820
821 priv->bss_mode = type;
822 priv->wdev.iftype = type;
823
824 mwifiex_init_priv_params(priv, priv->netdev);
825 priv->bss_started = 0;
826
827 switch (type) {
828 case NL80211_IFTYPE_STATION:
829 case NL80211_IFTYPE_ADHOC:
830 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
831 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
832 break;
833 case NL80211_IFTYPE_P2P_CLIENT:
834 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
835 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
836 break;
837 case NL80211_IFTYPE_P2P_GO:
838 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
839 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
840 break;
841 case NL80211_IFTYPE_AP:
842 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
843 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
844 break;
845 default:
846 mwifiex_dbg(adapter, ERROR,
847 "%s: changing to %d not supported\n",
848 dev->name, type);
849 return -EOPNOTSUPP;
850 }
851
852 spin_lock_irqsave(&adapter->main_proc_lock, flags);
853 adapter->main_locked = false;
854 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
855
856 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
857 adapter->rx_locked = false;
858 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
859
860 return 0;
861 }
862
863 static int
864 mwifiex_change_vif_to_p2p(struct net_device *dev,
865 enum nl80211_iftype curr_iftype,
866 enum nl80211_iftype type, u32 *flags,
867 struct vif_params *params)
868 {
869 struct mwifiex_private *priv;
870 struct mwifiex_adapter *adapter;
871
872 priv = mwifiex_netdev_get_priv(dev);
873
874 if (!priv)
875 return -1;
876
877 adapter = priv->adapter;
878
879 if (adapter->curr_iface_comb.p2p_intf ==
880 adapter->iface_limit.p2p_intf) {
881 mwifiex_dbg(adapter, ERROR,
882 "cannot create multiple P2P ifaces\n");
883 return -1;
884 }
885
886 mwifiex_dbg(adapter, INFO,
887 "%s: changing role to p2p\n", dev->name);
888
889 if (mwifiex_deinit_priv_params(priv))
890 return -1;
891 if (mwifiex_init_new_priv_params(priv, dev, type))
892 return -1;
893
894 switch (type) {
895 case NL80211_IFTYPE_P2P_CLIENT:
896 if (mwifiex_cfg80211_init_p2p_client(priv))
897 return -EFAULT;
898 break;
899 case NL80211_IFTYPE_P2P_GO:
900 if (mwifiex_cfg80211_init_p2p_go(priv))
901 return -EFAULT;
902 break;
903 default:
904 mwifiex_dbg(adapter, ERROR,
905 "%s: changing to %d not supported\n",
906 dev->name, type);
907 return -EOPNOTSUPP;
908 }
909
910 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
911 HostCmd_ACT_GEN_SET, 0, NULL, true))
912 return -1;
913
914 if (mwifiex_sta_init_cmd(priv, false, false))
915 return -1;
916
917 switch (curr_iftype) {
918 case NL80211_IFTYPE_STATION:
919 case NL80211_IFTYPE_ADHOC:
920 adapter->curr_iface_comb.sta_intf--;
921 break;
922 case NL80211_IFTYPE_AP:
923 adapter->curr_iface_comb.uap_intf--;
924 break;
925 default:
926 break;
927 }
928
929 adapter->curr_iface_comb.p2p_intf++;
930 dev->ieee80211_ptr->iftype = type;
931
932 return 0;
933 }
934
935 static int
936 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
937 enum nl80211_iftype curr_iftype,
938 enum nl80211_iftype type, u32 *flags,
939 struct vif_params *params)
940 {
941 struct mwifiex_private *priv;
942 struct mwifiex_adapter *adapter;
943
944 priv = mwifiex_netdev_get_priv(dev);
945
946 if (!priv)
947 return -1;
948
949 adapter = priv->adapter;
950
951 if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
952 curr_iftype != NL80211_IFTYPE_P2P_GO) &&
953 (adapter->curr_iface_comb.sta_intf ==
954 adapter->iface_limit.sta_intf)) {
955 mwifiex_dbg(adapter, ERROR,
956 "cannot create multiple station/adhoc ifaces\n");
957 return -1;
958 }
959
960 if (type == NL80211_IFTYPE_STATION)
961 mwifiex_dbg(adapter, INFO,
962 "%s: changing role to station\n", dev->name);
963 else
964 mwifiex_dbg(adapter, INFO,
965 "%s: changing role to adhoc\n", dev->name);
966
967 if (mwifiex_deinit_priv_params(priv))
968 return -1;
969 if (mwifiex_init_new_priv_params(priv, dev, type))
970 return -1;
971 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
972 HostCmd_ACT_GEN_SET, 0, NULL, true))
973 return -1;
974 if (mwifiex_sta_init_cmd(priv, false, false))
975 return -1;
976
977 switch (curr_iftype) {
978 case NL80211_IFTYPE_P2P_CLIENT:
979 case NL80211_IFTYPE_P2P_GO:
980 adapter->curr_iface_comb.p2p_intf--;
981 break;
982 case NL80211_IFTYPE_AP:
983 adapter->curr_iface_comb.uap_intf--;
984 break;
985 default:
986 break;
987 }
988
989 adapter->curr_iface_comb.sta_intf++;
990 dev->ieee80211_ptr->iftype = type;
991 return 0;
992 }
993
994 static int
995 mwifiex_change_vif_to_ap(struct net_device *dev,
996 enum nl80211_iftype curr_iftype,
997 enum nl80211_iftype type, u32 *flags,
998 struct vif_params *params)
999 {
1000 struct mwifiex_private *priv;
1001 struct mwifiex_adapter *adapter;
1002
1003 priv = mwifiex_netdev_get_priv(dev);
1004
1005 if (!priv)
1006 return -1;
1007
1008 adapter = priv->adapter;
1009
1010 if (adapter->curr_iface_comb.uap_intf ==
1011 adapter->iface_limit.uap_intf) {
1012 mwifiex_dbg(adapter, ERROR,
1013 "cannot create multiple AP ifaces\n");
1014 return -1;
1015 }
1016
1017 mwifiex_dbg(adapter, INFO,
1018 "%s: changing role to AP\n", dev->name);
1019
1020 if (mwifiex_deinit_priv_params(priv))
1021 return -1;
1022 if (mwifiex_init_new_priv_params(priv, dev, type))
1023 return -1;
1024 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1025 HostCmd_ACT_GEN_SET, 0, NULL, true))
1026 return -1;
1027 if (mwifiex_sta_init_cmd(priv, false, false))
1028 return -1;
1029
1030 switch (curr_iftype) {
1031 case NL80211_IFTYPE_P2P_CLIENT:
1032 case NL80211_IFTYPE_P2P_GO:
1033 adapter->curr_iface_comb.p2p_intf--;
1034 break;
1035 case NL80211_IFTYPE_STATION:
1036 case NL80211_IFTYPE_ADHOC:
1037 adapter->curr_iface_comb.sta_intf--;
1038 break;
1039 default:
1040 break;
1041 }
1042
1043 adapter->curr_iface_comb.uap_intf++;
1044 dev->ieee80211_ptr->iftype = type;
1045 return 0;
1046 }
1047 /*
1048 * CFG802.11 operation handler to change interface type.
1049 */
1050 static int
1051 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1052 struct net_device *dev,
1053 enum nl80211_iftype type, u32 *flags,
1054 struct vif_params *params)
1055 {
1056 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1057 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1058
1059 switch (curr_iftype) {
1060 case NL80211_IFTYPE_ADHOC:
1061 switch (type) {
1062 case NL80211_IFTYPE_STATION:
1063 priv->bss_mode = type;
1064 priv->sec_info.authentication_mode =
1065 NL80211_AUTHTYPE_OPEN_SYSTEM;
1066 dev->ieee80211_ptr->iftype = type;
1067 mwifiex_deauthenticate(priv, NULL);
1068 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1069 HostCmd_ACT_GEN_SET, 0, NULL,
1070 true);
1071 case NL80211_IFTYPE_P2P_CLIENT:
1072 case NL80211_IFTYPE_P2P_GO:
1073 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1074 type, flags, params);
1075 case NL80211_IFTYPE_AP:
1076 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1077 flags, params);
1078 case NL80211_IFTYPE_UNSPECIFIED:
1079 mwifiex_dbg(priv->adapter, INFO,
1080 "%s: kept type as IBSS\n", dev->name);
1081 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
1082 return 0;
1083 default:
1084 mwifiex_dbg(priv->adapter, ERROR,
1085 "%s: changing to %d not supported\n",
1086 dev->name, type);
1087 return -EOPNOTSUPP;
1088 }
1089 break;
1090 case NL80211_IFTYPE_STATION:
1091 switch (type) {
1092 case NL80211_IFTYPE_ADHOC:
1093 priv->bss_mode = type;
1094 priv->sec_info.authentication_mode =
1095 NL80211_AUTHTYPE_OPEN_SYSTEM;
1096 dev->ieee80211_ptr->iftype = type;
1097 mwifiex_deauthenticate(priv, NULL);
1098 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1099 HostCmd_ACT_GEN_SET, 0, NULL,
1100 true);
1101 case NL80211_IFTYPE_P2P_CLIENT:
1102 case NL80211_IFTYPE_P2P_GO:
1103 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1104 type, flags, params);
1105 case NL80211_IFTYPE_AP:
1106 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1107 flags, params);
1108 case NL80211_IFTYPE_UNSPECIFIED:
1109 mwifiex_dbg(priv->adapter, INFO,
1110 "%s: kept type as STA\n", dev->name);
1111 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
1112 return 0;
1113 default:
1114 mwifiex_dbg(priv->adapter, ERROR,
1115 "%s: changing to %d not supported\n",
1116 dev->name, type);
1117 return -EOPNOTSUPP;
1118 }
1119 break;
1120 case NL80211_IFTYPE_AP:
1121 switch (type) {
1122 case NL80211_IFTYPE_ADHOC:
1123 case NL80211_IFTYPE_STATION:
1124 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1125 type, flags,
1126 params);
1127 break;
1128 case NL80211_IFTYPE_P2P_CLIENT:
1129 case NL80211_IFTYPE_P2P_GO:
1130 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1131 type, flags, params);
1132 case NL80211_IFTYPE_UNSPECIFIED:
1133 mwifiex_dbg(priv->adapter, INFO,
1134 "%s: kept type as AP\n", dev->name);
1135 case NL80211_IFTYPE_AP: /* This shouldn't happen */
1136 return 0;
1137 default:
1138 mwifiex_dbg(priv->adapter, ERROR,
1139 "%s: changing to %d not supported\n",
1140 dev->name, type);
1141 return -EOPNOTSUPP;
1142 }
1143 break;
1144 case NL80211_IFTYPE_P2P_CLIENT:
1145 case NL80211_IFTYPE_P2P_GO:
1146 switch (type) {
1147 case NL80211_IFTYPE_STATION:
1148 if (mwifiex_cfg80211_deinit_p2p(priv))
1149 return -EFAULT;
1150 priv->adapter->curr_iface_comb.p2p_intf--;
1151 priv->adapter->curr_iface_comb.sta_intf++;
1152 dev->ieee80211_ptr->iftype = type;
1153 break;
1154 case NL80211_IFTYPE_ADHOC:
1155 if (mwifiex_cfg80211_deinit_p2p(priv))
1156 return -EFAULT;
1157 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1158 type, flags,
1159 params);
1160 break;
1161 case NL80211_IFTYPE_AP:
1162 if (mwifiex_cfg80211_deinit_p2p(priv))
1163 return -EFAULT;
1164 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1165 flags, params);
1166 case NL80211_IFTYPE_UNSPECIFIED:
1167 mwifiex_dbg(priv->adapter, INFO,
1168 "%s: kept type as P2P\n", dev->name);
1169 case NL80211_IFTYPE_P2P_CLIENT:
1170 case NL80211_IFTYPE_P2P_GO:
1171 return 0;
1172 default:
1173 mwifiex_dbg(priv->adapter, ERROR,
1174 "%s: changing to %d not supported\n",
1175 dev->name, type);
1176 return -EOPNOTSUPP;
1177 }
1178 break;
1179 default:
1180 mwifiex_dbg(priv->adapter, ERROR,
1181 "%s: unknown iftype: %d\n",
1182 dev->name, dev->ieee80211_ptr->iftype);
1183 return -EOPNOTSUPP;
1184 }
1185
1186
1187 return 0;
1188 }
1189
1190 static void
1191 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1192 struct rate_info *rate)
1193 {
1194 struct mwifiex_adapter *adapter = priv->adapter;
1195
1196 if (adapter->is_hw_11ac_capable) {
1197 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1198 if (tx_htinfo & BIT(0)) {
1199 /* HT */
1200 rate->mcs = priv->tx_rate;
1201 rate->flags |= RATE_INFO_FLAGS_MCS;
1202 }
1203 if (tx_htinfo & BIT(1)) {
1204 /* VHT */
1205 rate->mcs = priv->tx_rate & 0x0F;
1206 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1207 }
1208
1209 if (tx_htinfo & (BIT(1) | BIT(0))) {
1210 /* HT or VHT */
1211 switch (tx_htinfo & (BIT(3) | BIT(2))) {
1212 case 0:
1213 rate->bw = RATE_INFO_BW_20;
1214 break;
1215 case (BIT(2)):
1216 rate->bw = RATE_INFO_BW_40;
1217 break;
1218 case (BIT(3)):
1219 rate->bw = RATE_INFO_BW_80;
1220 break;
1221 case (BIT(3) | BIT(2)):
1222 rate->bw = RATE_INFO_BW_160;
1223 break;
1224 }
1225
1226 if (tx_htinfo & BIT(4))
1227 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1228
1229 if ((priv->tx_rate >> 4) == 1)
1230 rate->nss = 2;
1231 else
1232 rate->nss = 1;
1233 }
1234 } else {
1235 /*
1236 * Bit 0 in tx_htinfo indicates that current Tx rate
1237 * is 11n rate. Valid MCS index values for us are 0 to 15.
1238 */
1239 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1240 rate->mcs = priv->tx_rate;
1241 rate->flags |= RATE_INFO_FLAGS_MCS;
1242 rate->bw = RATE_INFO_BW_20;
1243 if (tx_htinfo & BIT(1))
1244 rate->bw = RATE_INFO_BW_40;
1245 if (tx_htinfo & BIT(2))
1246 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1247 }
1248 }
1249 }
1250
1251 /*
1252 * This function dumps the station information on a buffer.
1253 *
1254 * The following information are shown -
1255 * - Total bytes transmitted
1256 * - Total bytes received
1257 * - Total packets transmitted
1258 * - Total packets received
1259 * - Signal quality level
1260 * - Transmission rate
1261 */
1262 static int
1263 mwifiex_dump_station_info(struct mwifiex_private *priv,
1264 struct mwifiex_sta_node *node,
1265 struct station_info *sinfo)
1266 {
1267 u32 rate;
1268
1269 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1270 BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1271 BIT(NL80211_STA_INFO_TX_BITRATE) |
1272 BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1273
1274 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1275 if (!node)
1276 return -ENOENT;
1277
1278 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1279 BIT(NL80211_STA_INFO_TX_FAILED);
1280 sinfo->inactive_time =
1281 jiffies_to_msecs(jiffies - node->stats.last_rx);
1282
1283 sinfo->signal = node->stats.rssi;
1284 sinfo->signal_avg = node->stats.rssi;
1285 sinfo->rx_bytes = node->stats.rx_bytes;
1286 sinfo->tx_bytes = node->stats.tx_bytes;
1287 sinfo->rx_packets = node->stats.rx_packets;
1288 sinfo->tx_packets = node->stats.tx_packets;
1289 sinfo->tx_failed = node->stats.tx_failed;
1290
1291 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1292 &sinfo->txrate);
1293 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1294
1295 return 0;
1296 }
1297
1298 /* Get signal information from the firmware */
1299 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1300 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1301 mwifiex_dbg(priv->adapter, ERROR,
1302 "failed to get signal information\n");
1303 return -EFAULT;
1304 }
1305
1306 if (mwifiex_drv_get_data_rate(priv, &rate)) {
1307 mwifiex_dbg(priv->adapter, ERROR,
1308 "getting data rate error\n");
1309 return -EFAULT;
1310 }
1311
1312 /* Get DTIM period information from firmware */
1313 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1314 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1315 &priv->dtim_period, true);
1316
1317 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1318
1319 sinfo->signal_avg = priv->bcn_rssi_avg;
1320 sinfo->rx_bytes = priv->stats.rx_bytes;
1321 sinfo->tx_bytes = priv->stats.tx_bytes;
1322 sinfo->rx_packets = priv->stats.rx_packets;
1323 sinfo->tx_packets = priv->stats.tx_packets;
1324 sinfo->signal = priv->bcn_rssi_avg;
1325 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1326 sinfo->txrate.legacy = rate * 5;
1327
1328 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1329 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1330 sinfo->bss_param.flags = 0;
1331 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1332 WLAN_CAPABILITY_SHORT_PREAMBLE)
1333 sinfo->bss_param.flags |=
1334 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1335 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1336 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1337 sinfo->bss_param.flags |=
1338 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1339 sinfo->bss_param.dtim_period = priv->dtim_period;
1340 sinfo->bss_param.beacon_interval =
1341 priv->curr_bss_params.bss_descriptor.beacon_period;
1342 }
1343
1344 return 0;
1345 }
1346
1347 /*
1348 * CFG802.11 operation handler to get station information.
1349 *
1350 * This function only works in connected mode, and dumps the
1351 * requested station information, if available.
1352 */
1353 static int
1354 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1355 const u8 *mac, struct station_info *sinfo)
1356 {
1357 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1358
1359 if (!priv->media_connected)
1360 return -ENOENT;
1361 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1362 return -ENOENT;
1363
1364 return mwifiex_dump_station_info(priv, NULL, sinfo);
1365 }
1366
1367 /*
1368 * CFG802.11 operation handler to dump station information.
1369 */
1370 static int
1371 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1372 int idx, u8 *mac, struct station_info *sinfo)
1373 {
1374 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1375 static struct mwifiex_sta_node *node;
1376
1377 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1378 priv->media_connected && idx == 0) {
1379 ether_addr_copy(mac, priv->cfg_bssid);
1380 return mwifiex_dump_station_info(priv, NULL, sinfo);
1381 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1382 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1383 HostCmd_ACT_GEN_GET, 0, NULL, true);
1384
1385 if (node && (&node->list == &priv->sta_list)) {
1386 node = NULL;
1387 return -ENOENT;
1388 }
1389
1390 node = list_prepare_entry(node, &priv->sta_list, list);
1391 list_for_each_entry_continue(node, &priv->sta_list, list) {
1392 ether_addr_copy(mac, node->mac_addr);
1393 return mwifiex_dump_station_info(priv, node, sinfo);
1394 }
1395 }
1396
1397 return -ENOENT;
1398 }
1399
1400 static int
1401 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1402 int idx, struct survey_info *survey)
1403 {
1404 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1405 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1406 enum ieee80211_band band;
1407
1408 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1409
1410 memset(survey, 0, sizeof(struct survey_info));
1411
1412 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1413 priv->media_connected && idx == 0) {
1414 u8 curr_bss_band = priv->curr_bss_params.band;
1415 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1416
1417 band = mwifiex_band_to_radio_type(curr_bss_band);
1418 survey->channel = ieee80211_get_channel(wiphy,
1419 ieee80211_channel_to_frequency(chan, band));
1420
1421 if (priv->bcn_nf_last) {
1422 survey->filled = SURVEY_INFO_NOISE_DBM;
1423 survey->noise = priv->bcn_nf_last;
1424 }
1425 return 0;
1426 }
1427
1428 if (idx >= priv->adapter->num_in_chan_stats)
1429 return -ENOENT;
1430
1431 if (!pchan_stats[idx].cca_scan_dur)
1432 return 0;
1433
1434 band = pchan_stats[idx].bandcfg;
1435 survey->channel = ieee80211_get_channel(wiphy,
1436 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1437 survey->filled = SURVEY_INFO_NOISE_DBM |
1438 SURVEY_INFO_TIME |
1439 SURVEY_INFO_TIME_BUSY;
1440 survey->noise = pchan_stats[idx].noise;
1441 survey->time = pchan_stats[idx].cca_scan_dur;
1442 survey->time_busy = pchan_stats[idx].cca_busy_dur;
1443
1444 return 0;
1445 }
1446
1447 /* Supported rates to be advertised to the cfg80211 */
1448 static struct ieee80211_rate mwifiex_rates[] = {
1449 {.bitrate = 10, .hw_value = 2, },
1450 {.bitrate = 20, .hw_value = 4, },
1451 {.bitrate = 55, .hw_value = 11, },
1452 {.bitrate = 110, .hw_value = 22, },
1453 {.bitrate = 60, .hw_value = 12, },
1454 {.bitrate = 90, .hw_value = 18, },
1455 {.bitrate = 120, .hw_value = 24, },
1456 {.bitrate = 180, .hw_value = 36, },
1457 {.bitrate = 240, .hw_value = 48, },
1458 {.bitrate = 360, .hw_value = 72, },
1459 {.bitrate = 480, .hw_value = 96, },
1460 {.bitrate = 540, .hw_value = 108, },
1461 };
1462
1463 /* Channel definitions to be advertised to cfg80211 */
1464 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1465 {.center_freq = 2412, .hw_value = 1, },
1466 {.center_freq = 2417, .hw_value = 2, },
1467 {.center_freq = 2422, .hw_value = 3, },
1468 {.center_freq = 2427, .hw_value = 4, },
1469 {.center_freq = 2432, .hw_value = 5, },
1470 {.center_freq = 2437, .hw_value = 6, },
1471 {.center_freq = 2442, .hw_value = 7, },
1472 {.center_freq = 2447, .hw_value = 8, },
1473 {.center_freq = 2452, .hw_value = 9, },
1474 {.center_freq = 2457, .hw_value = 10, },
1475 {.center_freq = 2462, .hw_value = 11, },
1476 {.center_freq = 2467, .hw_value = 12, },
1477 {.center_freq = 2472, .hw_value = 13, },
1478 {.center_freq = 2484, .hw_value = 14, },
1479 };
1480
1481 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1482 .channels = mwifiex_channels_2ghz,
1483 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1484 .bitrates = mwifiex_rates,
1485 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1486 };
1487
1488 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1489 {.center_freq = 5040, .hw_value = 8, },
1490 {.center_freq = 5060, .hw_value = 12, },
1491 {.center_freq = 5080, .hw_value = 16, },
1492 {.center_freq = 5170, .hw_value = 34, },
1493 {.center_freq = 5190, .hw_value = 38, },
1494 {.center_freq = 5210, .hw_value = 42, },
1495 {.center_freq = 5230, .hw_value = 46, },
1496 {.center_freq = 5180, .hw_value = 36, },
1497 {.center_freq = 5200, .hw_value = 40, },
1498 {.center_freq = 5220, .hw_value = 44, },
1499 {.center_freq = 5240, .hw_value = 48, },
1500 {.center_freq = 5260, .hw_value = 52, },
1501 {.center_freq = 5280, .hw_value = 56, },
1502 {.center_freq = 5300, .hw_value = 60, },
1503 {.center_freq = 5320, .hw_value = 64, },
1504 {.center_freq = 5500, .hw_value = 100, },
1505 {.center_freq = 5520, .hw_value = 104, },
1506 {.center_freq = 5540, .hw_value = 108, },
1507 {.center_freq = 5560, .hw_value = 112, },
1508 {.center_freq = 5580, .hw_value = 116, },
1509 {.center_freq = 5600, .hw_value = 120, },
1510 {.center_freq = 5620, .hw_value = 124, },
1511 {.center_freq = 5640, .hw_value = 128, },
1512 {.center_freq = 5660, .hw_value = 132, },
1513 {.center_freq = 5680, .hw_value = 136, },
1514 {.center_freq = 5700, .hw_value = 140, },
1515 {.center_freq = 5745, .hw_value = 149, },
1516 {.center_freq = 5765, .hw_value = 153, },
1517 {.center_freq = 5785, .hw_value = 157, },
1518 {.center_freq = 5805, .hw_value = 161, },
1519 {.center_freq = 5825, .hw_value = 165, },
1520 };
1521
1522 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1523 .channels = mwifiex_channels_5ghz,
1524 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1525 .bitrates = mwifiex_rates + 4,
1526 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1527 };
1528
1529
1530 /* Supported crypto cipher suits to be advertised to cfg80211 */
1531 static const u32 mwifiex_cipher_suites[] = {
1532 WLAN_CIPHER_SUITE_WEP40,
1533 WLAN_CIPHER_SUITE_WEP104,
1534 WLAN_CIPHER_SUITE_TKIP,
1535 WLAN_CIPHER_SUITE_CCMP,
1536 WLAN_CIPHER_SUITE_AES_CMAC,
1537 };
1538
1539 /* Supported mgmt frame types to be advertised to cfg80211 */
1540 static const struct ieee80211_txrx_stypes
1541 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1542 [NL80211_IFTYPE_STATION] = {
1543 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1544 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1545 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1546 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1547 },
1548 [NL80211_IFTYPE_AP] = {
1549 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1550 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1551 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1552 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1553 },
1554 [NL80211_IFTYPE_P2P_CLIENT] = {
1555 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1556 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1557 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1558 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1559 },
1560 [NL80211_IFTYPE_P2P_GO] = {
1561 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1562 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1563 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1564 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1565 },
1566 };
1567
1568 /*
1569 * CFG802.11 operation handler for setting bit rates.
1570 *
1571 * Function configures data rates to firmware using bitrate mask
1572 * provided by cfg80211.
1573 */
1574 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1575 struct net_device *dev,
1576 const u8 *peer,
1577 const struct cfg80211_bitrate_mask *mask)
1578 {
1579 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1580 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1581 enum ieee80211_band band;
1582 struct mwifiex_adapter *adapter = priv->adapter;
1583
1584 if (!priv->media_connected) {
1585 mwifiex_dbg(adapter, ERROR,
1586 "Can not set Tx data rate in disconnected state\n");
1587 return -EINVAL;
1588 }
1589
1590 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1591
1592 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1593
1594 /* Fill HR/DSSS rates. */
1595 if (band == IEEE80211_BAND_2GHZ)
1596 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1597
1598 /* Fill OFDM rates */
1599 if (band == IEEE80211_BAND_2GHZ)
1600 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1601 else
1602 bitmap_rates[1] = mask->control[band].legacy;
1603
1604 /* Fill HT MCS rates */
1605 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1606 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1607 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1608
1609 /* Fill VHT MCS rates */
1610 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1611 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1612 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1613 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1614 }
1615
1616 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1617 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1618 }
1619
1620 /*
1621 * CFG802.11 operation handler for connection quality monitoring.
1622 *
1623 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1624 * events to FW.
1625 */
1626 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1627 struct net_device *dev,
1628 s32 rssi_thold, u32 rssi_hyst)
1629 {
1630 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1631 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1632
1633 priv->cqm_rssi_thold = rssi_thold;
1634 priv->cqm_rssi_hyst = rssi_hyst;
1635
1636 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1637 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1638
1639 /* Subscribe/unsubscribe low and high rssi events */
1640 if (rssi_thold && rssi_hyst) {
1641 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1642 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1643 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1644 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1645 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1646 return mwifiex_send_cmd(priv,
1647 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1648 0, 0, &subsc_evt, true);
1649 } else {
1650 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1651 return mwifiex_send_cmd(priv,
1652 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1653 0, 0, &subsc_evt, true);
1654 }
1655
1656 return 0;
1657 }
1658
1659 /* cfg80211 operation handler for change_beacon.
1660 * Function retrieves and sets modified management IEs to FW.
1661 */
1662 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1663 struct net_device *dev,
1664 struct cfg80211_beacon_data *data)
1665 {
1666 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1667
1668 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1669 mwifiex_dbg(priv->adapter, ERROR,
1670 "%s: bss_type mismatched\n", __func__);
1671 return -EINVAL;
1672 }
1673
1674 if (!priv->bss_started) {
1675 mwifiex_dbg(priv->adapter, ERROR,
1676 "%s: bss not started\n", __func__);
1677 return -EINVAL;
1678 }
1679
1680 if (mwifiex_set_mgmt_ies(priv, data)) {
1681 mwifiex_dbg(priv->adapter, ERROR,
1682 "%s: setting mgmt ies failed\n", __func__);
1683 return -EFAULT;
1684 }
1685
1686 return 0;
1687 }
1688
1689 /* cfg80211 operation handler for del_station.
1690 * Function deauthenticates station which value is provided in mac parameter.
1691 * If mac is NULL/broadcast, all stations in associated station list are
1692 * deauthenticated. If bss is not started or there are no stations in
1693 * associated stations list, no action is taken.
1694 */
1695 static int
1696 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1697 struct station_del_parameters *params)
1698 {
1699 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1700 struct mwifiex_sta_node *sta_node;
1701 u8 deauth_mac[ETH_ALEN];
1702 unsigned long flags;
1703
1704 if (list_empty(&priv->sta_list) || !priv->bss_started)
1705 return 0;
1706
1707 if (!params->mac || is_broadcast_ether_addr(params->mac))
1708 return 0;
1709
1710 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1711 __func__, params->mac);
1712
1713 eth_zero_addr(deauth_mac);
1714
1715 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1716 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1717 if (sta_node)
1718 ether_addr_copy(deauth_mac, params->mac);
1719 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1720
1721 if (is_valid_ether_addr(deauth_mac)) {
1722 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1723 HostCmd_ACT_GEN_SET, 0,
1724 deauth_mac, true))
1725 return -1;
1726 }
1727
1728 return 0;
1729 }
1730
1731 static int
1732 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1733 {
1734 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1735 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1736 MWIFIEX_BSS_ROLE_ANY);
1737 struct mwifiex_ds_ant_cfg ant_cfg;
1738
1739 if (!tx_ant || !rx_ant)
1740 return -EOPNOTSUPP;
1741
1742 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1743 /* Not a MIMO chip. User should provide specific antenna number
1744 * for Tx/Rx path or enable all antennas for diversity
1745 */
1746 if (tx_ant != rx_ant)
1747 return -EOPNOTSUPP;
1748
1749 if ((tx_ant & (tx_ant - 1)) &&
1750 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1751 return -EOPNOTSUPP;
1752
1753 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1754 (priv->adapter->number_of_antenna > 1)) {
1755 tx_ant = RF_ANTENNA_AUTO;
1756 rx_ant = RF_ANTENNA_AUTO;
1757 }
1758 } else {
1759 struct ieee80211_sta_ht_cap *ht_info;
1760 int rx_mcs_supp;
1761 enum ieee80211_band band;
1762
1763 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1764 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1765 if (adapter->is_hw_11ac_capable)
1766 adapter->usr_dot_11ac_mcs_support =
1767 MWIFIEX_11AC_MCS_MAP_1X1;
1768 } else {
1769 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1770 if (adapter->is_hw_11ac_capable)
1771 adapter->usr_dot_11ac_mcs_support =
1772 MWIFIEX_11AC_MCS_MAP_2X2;
1773 }
1774
1775 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1776 if (!adapter->wiphy->bands[band])
1777 continue;
1778
1779 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1780 rx_mcs_supp =
1781 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1782 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1783 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1784 }
1785 }
1786
1787 ant_cfg.tx_ant = tx_ant;
1788 ant_cfg.rx_ant = rx_ant;
1789
1790 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1791 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1792 }
1793
1794 /* cfg80211 operation handler for stop ap.
1795 * Function stops BSS running at uAP interface.
1796 */
1797 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1798 {
1799 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1800
1801 mwifiex_abort_cac(priv);
1802
1803 if (mwifiex_del_mgmt_ies(priv))
1804 mwifiex_dbg(priv->adapter, ERROR,
1805 "Failed to delete mgmt IEs!\n");
1806
1807 priv->ap_11n_enabled = 0;
1808 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1809
1810 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1811 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1812 mwifiex_dbg(priv->adapter, ERROR,
1813 "Failed to stop the BSS\n");
1814 return -1;
1815 }
1816
1817 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1818 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1819 mwifiex_dbg(priv->adapter, ERROR,
1820 "Failed to reset BSS\n");
1821 return -1;
1822 }
1823
1824 if (netif_carrier_ok(priv->netdev))
1825 netif_carrier_off(priv->netdev);
1826 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1827
1828 return 0;
1829 }
1830
1831 /* cfg80211 operation handler for start_ap.
1832 * Function sets beacon period, DTIM period, SSID and security into
1833 * AP config structure.
1834 * AP is configured with these settings and BSS is started.
1835 */
1836 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1837 struct net_device *dev,
1838 struct cfg80211_ap_settings *params)
1839 {
1840 struct mwifiex_uap_bss_param *bss_cfg;
1841 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1842
1843 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1844 return -1;
1845
1846 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1847 if (!bss_cfg)
1848 return -ENOMEM;
1849
1850 mwifiex_set_sys_config_invalid_data(bss_cfg);
1851
1852 if (params->beacon_interval)
1853 bss_cfg->beacon_period = params->beacon_interval;
1854 if (params->dtim_period)
1855 bss_cfg->dtim_period = params->dtim_period;
1856
1857 if (params->ssid && params->ssid_len) {
1858 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1859 bss_cfg->ssid.ssid_len = params->ssid_len;
1860 }
1861 if (params->inactivity_timeout > 0) {
1862 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1863 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1864 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1865 }
1866
1867 switch (params->hidden_ssid) {
1868 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1869 bss_cfg->bcast_ssid_ctl = 1;
1870 break;
1871 case NL80211_HIDDEN_SSID_ZERO_LEN:
1872 bss_cfg->bcast_ssid_ctl = 0;
1873 break;
1874 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1875 /* firmware doesn't support this type of hidden SSID */
1876 default:
1877 kfree(bss_cfg);
1878 return -EINVAL;
1879 }
1880
1881 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1882 mwifiex_set_uap_rates(bss_cfg, params);
1883
1884 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1885 kfree(bss_cfg);
1886 mwifiex_dbg(priv->adapter, ERROR,
1887 "Failed to parse secuirty parameters!\n");
1888 return -1;
1889 }
1890
1891 mwifiex_set_ht_params(priv, bss_cfg, params);
1892
1893 if (priv->adapter->is_hw_11ac_capable) {
1894 mwifiex_set_vht_params(priv, bss_cfg, params);
1895 mwifiex_set_vht_width(priv, params->chandef.width,
1896 priv->ap_11ac_enabled);
1897 }
1898
1899 if (priv->ap_11ac_enabled)
1900 mwifiex_set_11ac_ba_params(priv);
1901 else
1902 mwifiex_set_ba_params(priv);
1903
1904 mwifiex_set_wmm_params(priv, bss_cfg, params);
1905
1906 if (mwifiex_is_11h_active(priv))
1907 mwifiex_set_tpc_params(priv, bss_cfg, params);
1908
1909 if (mwifiex_is_11h_active(priv) &&
1910 !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
1911 priv->bss_mode)) {
1912 mwifiex_dbg(priv->adapter, INFO,
1913 "Disable 11h extensions in FW\n");
1914 if (mwifiex_11h_activate(priv, false)) {
1915 mwifiex_dbg(priv->adapter, ERROR,
1916 "Failed to disable 11h extensions!!");
1917 return -1;
1918 }
1919 priv->state_11h.is_11h_active = false;
1920 }
1921
1922 if (mwifiex_config_start_uap(priv, bss_cfg)) {
1923 mwifiex_dbg(priv->adapter, ERROR,
1924 "Failed to start AP\n");
1925 kfree(bss_cfg);
1926 return -1;
1927 }
1928
1929 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1930 return -1;
1931
1932 if (!netif_carrier_ok(priv->netdev))
1933 netif_carrier_on(priv->netdev);
1934 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
1935
1936 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1937 kfree(bss_cfg);
1938 return 0;
1939 }
1940
1941 /*
1942 * CFG802.11 operation handler for disconnection request.
1943 *
1944 * This function does not work when there is already a disconnection
1945 * procedure going on.
1946 */
1947 static int
1948 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1949 u16 reason_code)
1950 {
1951 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1952
1953 if (mwifiex_deauthenticate(priv, NULL))
1954 return -EFAULT;
1955
1956 mwifiex_dbg(priv->adapter, MSG,
1957 "info: successfully disconnected from %pM:\t"
1958 "reason code %d\n", priv->cfg_bssid, reason_code);
1959
1960 eth_zero_addr(priv->cfg_bssid);
1961 priv->hs2_enabled = false;
1962
1963 return 0;
1964 }
1965
1966 /*
1967 * This function informs the CFG802.11 subsystem of a new IBSS.
1968 *
1969 * The following information are sent to the CFG802.11 subsystem
1970 * to register the new IBSS. If we do not register the new IBSS,
1971 * a kernel panic will result.
1972 * - SSID
1973 * - SSID length
1974 * - BSSID
1975 * - Channel
1976 */
1977 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1978 {
1979 struct ieee80211_channel *chan;
1980 struct mwifiex_bss_info bss_info;
1981 struct cfg80211_bss *bss;
1982 int ie_len;
1983 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1984 enum ieee80211_band band;
1985
1986 if (mwifiex_get_bss_info(priv, &bss_info))
1987 return -1;
1988
1989 ie_buf[0] = WLAN_EID_SSID;
1990 ie_buf[1] = bss_info.ssid.ssid_len;
1991
1992 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1993 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1994 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1995
1996 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1997 chan = __ieee80211_get_channel(priv->wdev.wiphy,
1998 ieee80211_channel_to_frequency(bss_info.bss_chan,
1999 band));
2000
2001 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2002 CFG80211_BSS_FTYPE_UNKNOWN,
2003 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2004 0, ie_buf, ie_len, 0, GFP_KERNEL);
2005 if (bss) {
2006 cfg80211_put_bss(priv->wdev.wiphy, bss);
2007 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2008 }
2009
2010 return 0;
2011 }
2012
2013 /*
2014 * This function connects with a BSS.
2015 *
2016 * This function handles both Infra and Ad-Hoc modes. It also performs
2017 * validity checking on the provided parameters, disconnects from the
2018 * current BSS (if any), sets up the association/scan parameters,
2019 * including security settings, and performs specific SSID scan before
2020 * trying to connect.
2021 *
2022 * For Infra mode, the function returns failure if the specified SSID
2023 * is not found in scan table. However, for Ad-Hoc mode, it can create
2024 * the IBSS if it does not exist. On successful completion in either case,
2025 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2026 */
2027 static int
2028 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2029 const u8 *ssid, const u8 *bssid, int mode,
2030 struct ieee80211_channel *channel,
2031 struct cfg80211_connect_params *sme, bool privacy)
2032 {
2033 struct cfg80211_ssid req_ssid;
2034 int ret, auth_type = 0;
2035 struct cfg80211_bss *bss = NULL;
2036 u8 is_scanning_required = 0;
2037
2038 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2039
2040 req_ssid.ssid_len = ssid_len;
2041 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2042 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2043 return -EINVAL;
2044 }
2045
2046 memcpy(req_ssid.ssid, ssid, ssid_len);
2047 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2048 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2049 return -EINVAL;
2050 }
2051
2052 /* As this is new association, clear locally stored
2053 * keys and security related flags */
2054 priv->sec_info.wpa_enabled = false;
2055 priv->sec_info.wpa2_enabled = false;
2056 priv->wep_key_curr_index = 0;
2057 priv->sec_info.encryption_mode = 0;
2058 priv->sec_info.is_authtype_auto = 0;
2059 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2060
2061 if (mode == NL80211_IFTYPE_ADHOC) {
2062 /* "privacy" is set only for ad-hoc mode */
2063 if (privacy) {
2064 /*
2065 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2066 * the firmware can find a matching network from the
2067 * scan. The cfg80211 does not give us the encryption
2068 * mode at this stage so just setting it to WEP here.
2069 */
2070 priv->sec_info.encryption_mode =
2071 WLAN_CIPHER_SUITE_WEP104;
2072 priv->sec_info.authentication_mode =
2073 NL80211_AUTHTYPE_OPEN_SYSTEM;
2074 }
2075
2076 goto done;
2077 }
2078
2079 /* Now handle infra mode. "sme" is valid for infra mode only */
2080 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2081 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2082 priv->sec_info.is_authtype_auto = 1;
2083 } else {
2084 auth_type = sme->auth_type;
2085 }
2086
2087 if (sme->crypto.n_ciphers_pairwise) {
2088 priv->sec_info.encryption_mode =
2089 sme->crypto.ciphers_pairwise[0];
2090 priv->sec_info.authentication_mode = auth_type;
2091 }
2092
2093 if (sme->crypto.cipher_group) {
2094 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2095 priv->sec_info.authentication_mode = auth_type;
2096 }
2097 if (sme->ie)
2098 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2099
2100 if (sme->key) {
2101 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2102 mwifiex_dbg(priv->adapter, INFO,
2103 "info: setting wep encryption\t"
2104 "with key len %d\n", sme->key_len);
2105 priv->wep_key_curr_index = sme->key_idx;
2106 ret = mwifiex_set_encode(priv, NULL, sme->key,
2107 sme->key_len, sme->key_idx,
2108 NULL, 0);
2109 }
2110 }
2111 done:
2112 /*
2113 * Scan entries are valid for some time (15 sec). So we can save one
2114 * active scan time if we just try cfg80211_get_bss first. If it fails
2115 * then request scan and cfg80211_get_bss() again for final output.
2116 */
2117 while (1) {
2118 if (is_scanning_required) {
2119 /* Do specific SSID scanning */
2120 if (mwifiex_request_scan(priv, &req_ssid)) {
2121 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2122 return -EFAULT;
2123 }
2124 }
2125
2126 /* Find the BSS we want using available scan results */
2127 if (mode == NL80211_IFTYPE_ADHOC)
2128 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2129 bssid, ssid, ssid_len,
2130 IEEE80211_BSS_TYPE_IBSS,
2131 IEEE80211_PRIVACY_ANY);
2132 else
2133 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2134 bssid, ssid, ssid_len,
2135 IEEE80211_BSS_TYPE_ESS,
2136 IEEE80211_PRIVACY_ANY);
2137
2138 if (!bss) {
2139 if (is_scanning_required) {
2140 mwifiex_dbg(priv->adapter, WARN,
2141 "assoc: requested bss not found in scan results\n");
2142 break;
2143 }
2144 is_scanning_required = 1;
2145 } else {
2146 mwifiex_dbg(priv->adapter, MSG,
2147 "info: trying to associate to '%.*s' bssid %pM\n",
2148 req_ssid.ssid_len, (char *)req_ssid.ssid,
2149 bss->bssid);
2150 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2151 break;
2152 }
2153 }
2154
2155 ret = mwifiex_bss_start(priv, bss, &req_ssid);
2156 if (ret)
2157 return ret;
2158
2159 if (mode == NL80211_IFTYPE_ADHOC) {
2160 /* Inform the BSS information to kernel, otherwise
2161 * kernel will give a panic after successful assoc */
2162 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2163 return -EFAULT;
2164 }
2165
2166 return ret;
2167 }
2168
2169 /*
2170 * CFG802.11 operation handler for association request.
2171 *
2172 * This function does not work when the current mode is set to Ad-Hoc, or
2173 * when there is already an association procedure going on. The given BSS
2174 * information is used to associate.
2175 */
2176 static int
2177 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2178 struct cfg80211_connect_params *sme)
2179 {
2180 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2181 struct mwifiex_adapter *adapter = priv->adapter;
2182 int ret;
2183
2184 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2185 mwifiex_dbg(adapter, ERROR,
2186 "%s: reject infra assoc request in non-STA role\n",
2187 dev->name);
2188 return -EINVAL;
2189 }
2190
2191 if (priv->wdev.current_bss) {
2192 mwifiex_dbg(adapter, ERROR,
2193 "%s: already connected\n", dev->name);
2194 return -EALREADY;
2195 }
2196
2197 if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2198 mwifiex_dbg(adapter, ERROR,
2199 "%s: Ignore connection.\t"
2200 "Card removed or FW in bad state\n",
2201 dev->name);
2202 return -EFAULT;
2203 }
2204
2205 mwifiex_dbg(adapter, INFO,
2206 "info: Trying to associate to %.*s and bssid %pM\n",
2207 (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
2208
2209 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2210 priv->bss_mode, sme->channel, sme, 0);
2211 if (!ret) {
2212 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2213 NULL, 0, WLAN_STATUS_SUCCESS,
2214 GFP_KERNEL);
2215 mwifiex_dbg(priv->adapter, MSG,
2216 "info: associated to bssid %pM successfully\n",
2217 priv->cfg_bssid);
2218 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2219 priv->adapter->auto_tdls &&
2220 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2221 mwifiex_setup_auto_tdls_timer(priv);
2222 } else {
2223 mwifiex_dbg(priv->adapter, ERROR,
2224 "info: association to bssid %pM failed\n",
2225 priv->cfg_bssid);
2226 eth_zero_addr(priv->cfg_bssid);
2227
2228 if (ret > 0)
2229 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2230 NULL, 0, NULL, 0, ret,
2231 GFP_KERNEL);
2232 else
2233 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2234 NULL, 0, NULL, 0,
2235 WLAN_STATUS_UNSPECIFIED_FAILURE,
2236 GFP_KERNEL);
2237 }
2238
2239 return 0;
2240 }
2241
2242 /*
2243 * This function sets following parameters for ibss network.
2244 * - channel
2245 * - start band
2246 * - 11n flag
2247 * - secondary channel offset
2248 */
2249 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2250 struct cfg80211_ibss_params *params)
2251 {
2252 struct mwifiex_adapter *adapter = priv->adapter;
2253 int index = 0, i;
2254 u8 config_bands = 0;
2255
2256 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
2257 if (!params->basic_rates) {
2258 config_bands = BAND_B | BAND_G;
2259 } else {
2260 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2261 /*
2262 * Rates below 6 Mbps in the table are CCK
2263 * rates; 802.11b and from 6 they are OFDM;
2264 * 802.11G
2265 */
2266 if (mwifiex_rates[i].bitrate == 60) {
2267 index = 1 << i;
2268 break;
2269 }
2270 }
2271
2272 if (params->basic_rates < index) {
2273 config_bands = BAND_B;
2274 } else {
2275 config_bands = BAND_G;
2276 if (params->basic_rates % index)
2277 config_bands |= BAND_B;
2278 }
2279 }
2280
2281 if (cfg80211_get_chandef_type(&params->chandef) !=
2282 NL80211_CHAN_NO_HT)
2283 config_bands |= BAND_G | BAND_GN;
2284 } else {
2285 if (cfg80211_get_chandef_type(&params->chandef) ==
2286 NL80211_CHAN_NO_HT)
2287 config_bands = BAND_A;
2288 else
2289 config_bands = BAND_AN | BAND_A;
2290 }
2291
2292 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2293 adapter->config_bands = config_bands;
2294 adapter->adhoc_start_band = config_bands;
2295
2296 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2297 adapter->adhoc_11n_enabled = true;
2298 else
2299 adapter->adhoc_11n_enabled = false;
2300 }
2301
2302 adapter->sec_chan_offset =
2303 mwifiex_chan_type_to_sec_chan_offset(
2304 cfg80211_get_chandef_type(&params->chandef));
2305 priv->adhoc_channel = ieee80211_frequency_to_channel(
2306 params->chandef.chan->center_freq);
2307
2308 mwifiex_dbg(adapter, INFO,
2309 "info: set ibss band %d, chan %d, chan offset %d\n",
2310 config_bands, priv->adhoc_channel,
2311 adapter->sec_chan_offset);
2312
2313 return 0;
2314 }
2315
2316 /*
2317 * CFG802.11 operation handler to join an IBSS.
2318 *
2319 * This function does not work in any mode other than Ad-Hoc, or if
2320 * a join operation is already in progress.
2321 */
2322 static int
2323 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2324 struct cfg80211_ibss_params *params)
2325 {
2326 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2327 int ret = 0;
2328
2329 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2330 mwifiex_dbg(priv->adapter, ERROR,
2331 "request to join ibss received\t"
2332 "when station is not in ibss mode\n");
2333 goto done;
2334 }
2335
2336 mwifiex_dbg(priv->adapter, MSG,
2337 "info: trying to join to %.*s and bssid %pM\n",
2338 params->ssid_len, (char *)params->ssid, params->bssid);
2339
2340 mwifiex_set_ibss_params(priv, params);
2341
2342 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2343 params->bssid, priv->bss_mode,
2344 params->chandef.chan, NULL,
2345 params->privacy);
2346 done:
2347 if (!ret) {
2348 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2349 params->chandef.chan, GFP_KERNEL);
2350 mwifiex_dbg(priv->adapter, MSG,
2351 "info: joined/created adhoc network with bssid\t"
2352 "%pM successfully\n", priv->cfg_bssid);
2353 } else {
2354 mwifiex_dbg(priv->adapter, ERROR,
2355 "info: failed creating/joining adhoc network\n");
2356 }
2357
2358 return ret;
2359 }
2360
2361 /*
2362 * CFG802.11 operation handler to leave an IBSS.
2363 *
2364 * This function does not work if a leave operation is
2365 * already in progress.
2366 */
2367 static int
2368 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2369 {
2370 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2371
2372 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2373 priv->cfg_bssid);
2374 if (mwifiex_deauthenticate(priv, NULL))
2375 return -EFAULT;
2376
2377 eth_zero_addr(priv->cfg_bssid);
2378
2379 return 0;
2380 }
2381
2382 /*
2383 * CFG802.11 operation handler for scan request.
2384 *
2385 * This function issues a scan request to the firmware based upon
2386 * the user specified scan configuration. On successful completion,
2387 * it also informs the results.
2388 */
2389 static int
2390 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2391 struct cfg80211_scan_request *request)
2392 {
2393 struct net_device *dev = request->wdev->netdev;
2394 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2395 int i, offset, ret;
2396 struct ieee80211_channel *chan;
2397 struct ieee_types_header *ie;
2398 struct mwifiex_user_scan_cfg *user_scan_cfg;
2399
2400 mwifiex_dbg(priv->adapter, CMD,
2401 "info: received scan request on %s\n", dev->name);
2402
2403 /* Block scan request if scan operation or scan cleanup when interface
2404 * is disabled is in process
2405 */
2406 if (priv->scan_request || priv->scan_aborting) {
2407 mwifiex_dbg(priv->adapter, WARN,
2408 "cmd: Scan already in process..\n");
2409 return -EBUSY;
2410 }
2411
2412 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2413 if (!user_scan_cfg)
2414 return -ENOMEM;
2415
2416 priv->scan_request = request;
2417
2418 user_scan_cfg->num_ssids = request->n_ssids;
2419 user_scan_cfg->ssid_list = request->ssids;
2420
2421 if (request->ie && request->ie_len) {
2422 offset = 0;
2423 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2424 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2425 continue;
2426 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2427 ie = (struct ieee_types_header *)(request->ie + offset);
2428 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2429 offset += sizeof(*ie) + ie->len;
2430
2431 if (offset >= request->ie_len)
2432 break;
2433 }
2434 }
2435
2436 for (i = 0; i < min_t(u32, request->n_channels,
2437 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2438 chan = request->channels[i];
2439 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2440 user_scan_cfg->chan_list[i].radio_type = chan->band;
2441
2442 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2443 user_scan_cfg->chan_list[i].scan_type =
2444 MWIFIEX_SCAN_TYPE_PASSIVE;
2445 else
2446 user_scan_cfg->chan_list[i].scan_type =
2447 MWIFIEX_SCAN_TYPE_ACTIVE;
2448
2449 user_scan_cfg->chan_list[i].scan_time = 0;
2450 }
2451
2452 if (priv->adapter->scan_chan_gap_enabled &&
2453 mwifiex_is_any_intf_active(priv))
2454 user_scan_cfg->scan_chan_gap =
2455 priv->adapter->scan_chan_gap_time;
2456
2457 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2458 kfree(user_scan_cfg);
2459 if (ret) {
2460 mwifiex_dbg(priv->adapter, ERROR,
2461 "scan failed: %d\n", ret);
2462 priv->scan_aborting = false;
2463 priv->scan_request = NULL;
2464 return ret;
2465 }
2466
2467 if (request->ie && request->ie_len) {
2468 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2469 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2470 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2471 memset(&priv->vs_ie[i].ie, 0,
2472 MWIFIEX_MAX_VSIE_LEN);
2473 }
2474 }
2475 }
2476 return 0;
2477 }
2478
2479 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2480 struct mwifiex_private *priv)
2481 {
2482 struct mwifiex_adapter *adapter = priv->adapter;
2483
2484 vht_info->vht_supported = true;
2485
2486 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2487 /* Update MCS support for VHT */
2488 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2489 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2490 vht_info->vht_mcs.rx_highest = 0;
2491 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2492 adapter->hw_dot_11ac_mcs_support >> 16);
2493 vht_info->vht_mcs.tx_highest = 0;
2494 }
2495
2496 /*
2497 * This function sets up the CFG802.11 specific HT capability fields
2498 * with default values.
2499 *
2500 * The following default values are set -
2501 * - HT Supported = True
2502 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2503 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2504 * - HT Capabilities supported by firmware
2505 * - MCS information, Rx mask = 0xff
2506 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2507 */
2508 static void
2509 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2510 struct mwifiex_private *priv)
2511 {
2512 int rx_mcs_supp;
2513 struct ieee80211_mcs_info mcs_set;
2514 u8 *mcs = (u8 *)&mcs_set;
2515 struct mwifiex_adapter *adapter = priv->adapter;
2516
2517 ht_info->ht_supported = true;
2518 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2519 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2520
2521 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2522
2523 /* Fill HT capability information */
2524 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2525 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2526 else
2527 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2528
2529 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2530 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2531 else
2532 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2533
2534 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2535 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2536 else
2537 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2538
2539 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2540 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2541 else
2542 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2543
2544 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2545 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2546 else
2547 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2548
2549 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2550 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2551 else
2552 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2553
2554 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2555 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2556 else
2557 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2558
2559 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2560 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2561 else
2562 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2563
2564 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2565 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2566
2567 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2568 /* Set MCS for 1x1/2x2 */
2569 memset(mcs, 0xff, rx_mcs_supp);
2570 /* Clear all the other values */
2571 memset(&mcs[rx_mcs_supp], 0,
2572 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2573 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2574 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2575 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2576 SETHT_MCS32(mcs_set.rx_mask);
2577
2578 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2579
2580 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2581 }
2582
2583 /*
2584 * create a new virtual interface with the given name and name assign type
2585 */
2586 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2587 const char *name,
2588 unsigned char name_assign_type,
2589 enum nl80211_iftype type,
2590 u32 *flags,
2591 struct vif_params *params)
2592 {
2593 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2594 struct mwifiex_private *priv;
2595 struct net_device *dev;
2596 void *mdev_priv;
2597
2598 if (!adapter)
2599 return ERR_PTR(-EFAULT);
2600
2601 switch (type) {
2602 case NL80211_IFTYPE_UNSPECIFIED:
2603 case NL80211_IFTYPE_STATION:
2604 case NL80211_IFTYPE_ADHOC:
2605 if (adapter->curr_iface_comb.sta_intf ==
2606 adapter->iface_limit.sta_intf) {
2607 mwifiex_dbg(adapter, ERROR,
2608 "cannot create multiple sta/adhoc ifaces\n");
2609 return ERR_PTR(-EINVAL);
2610 }
2611
2612 priv = mwifiex_get_unused_priv(adapter);
2613 if (!priv) {
2614 mwifiex_dbg(adapter, ERROR,
2615 "could not get free private struct\n");
2616 return ERR_PTR(-EFAULT);
2617 }
2618
2619 priv->wdev.wiphy = wiphy;
2620 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2621
2622 if (type == NL80211_IFTYPE_UNSPECIFIED)
2623 priv->bss_mode = NL80211_IFTYPE_STATION;
2624 else
2625 priv->bss_mode = type;
2626
2627 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2628 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2629 priv->bss_priority = 0;
2630 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2631 priv->bss_num = adapter->curr_iface_comb.sta_intf;
2632
2633 break;
2634 case NL80211_IFTYPE_AP:
2635 if (adapter->curr_iface_comb.uap_intf ==
2636 adapter->iface_limit.uap_intf) {
2637 mwifiex_dbg(adapter, ERROR,
2638 "cannot create multiple AP ifaces\n");
2639 return ERR_PTR(-EINVAL);
2640 }
2641
2642 priv = mwifiex_get_unused_priv(adapter);
2643 if (!priv) {
2644 mwifiex_dbg(adapter, ERROR,
2645 "could not get free private struct\n");
2646 return ERR_PTR(-EFAULT);
2647 }
2648
2649 priv->wdev.wiphy = wiphy;
2650 priv->wdev.iftype = NL80211_IFTYPE_AP;
2651
2652 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2653 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2654 priv->bss_priority = 0;
2655 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2656 priv->bss_started = 0;
2657 priv->bss_num = adapter->curr_iface_comb.uap_intf;
2658 priv->bss_mode = type;
2659
2660 break;
2661 case NL80211_IFTYPE_P2P_CLIENT:
2662 if (adapter->curr_iface_comb.p2p_intf ==
2663 adapter->iface_limit.p2p_intf) {
2664 mwifiex_dbg(adapter, ERROR,
2665 "cannot create multiple P2P ifaces\n");
2666 return ERR_PTR(-EINVAL);
2667 }
2668
2669 priv = mwifiex_get_unused_priv(adapter);
2670 if (!priv) {
2671 mwifiex_dbg(adapter, ERROR,
2672 "could not get free private struct\n");
2673 return ERR_PTR(-EFAULT);
2674 }
2675
2676 priv->wdev.wiphy = wiphy;
2677 /* At start-up, wpa_supplicant tries to change the interface
2678 * to NL80211_IFTYPE_STATION if it is not managed mode.
2679 */
2680 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2681 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2682
2683 /* Setting bss_type to P2P tells firmware that this interface
2684 * is receiving P2P peers found during find phase and doing
2685 * action frame handshake.
2686 */
2687 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2688
2689 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2690 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2691 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2692 priv->bss_started = 0;
2693 priv->bss_num = adapter->curr_iface_comb.p2p_intf;
2694
2695 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2696 memset(&priv->wdev, 0, sizeof(priv->wdev));
2697 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2698 return ERR_PTR(-EFAULT);
2699 }
2700
2701 break;
2702 default:
2703 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2704 return ERR_PTR(-EINVAL);
2705 }
2706
2707 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2708 name_assign_type, ether_setup,
2709 IEEE80211_NUM_ACS, 1);
2710 if (!dev) {
2711 mwifiex_dbg(adapter, ERROR,
2712 "no memory available for netdevice\n");
2713 memset(&priv->wdev, 0, sizeof(priv->wdev));
2714 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2715 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2716 return ERR_PTR(-ENOMEM);
2717 }
2718
2719 mwifiex_init_priv_params(priv, dev);
2720 priv->netdev = dev;
2721
2722 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2723 if (adapter->is_hw_11ac_capable)
2724 mwifiex_setup_vht_caps(
2725 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2726
2727 if (adapter->config_bands & BAND_A)
2728 mwifiex_setup_ht_caps(
2729 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2730
2731 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2732 mwifiex_setup_vht_caps(
2733 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2734
2735 dev_net_set(dev, wiphy_net(wiphy));
2736 dev->ieee80211_ptr = &priv->wdev;
2737 dev->ieee80211_ptr->iftype = priv->bss_mode;
2738 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2739 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2740
2741 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2742 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2743 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2744 dev->ethtool_ops = &mwifiex_ethtool_ops;
2745
2746 mdev_priv = netdev_priv(dev);
2747 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2748
2749 SET_NETDEV_DEV(dev, adapter->dev);
2750
2751 /* Register network device */
2752 if (register_netdevice(dev)) {
2753 mwifiex_dbg(adapter, ERROR,
2754 "cannot register virtual network device\n");
2755 free_netdev(dev);
2756 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2757 priv->netdev = NULL;
2758 memset(&priv->wdev, 0, sizeof(priv->wdev));
2759 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2760 return ERR_PTR(-EFAULT);
2761 }
2762
2763 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2764 WQ_HIGHPRI |
2765 WQ_MEM_RECLAIM |
2766 WQ_UNBOUND, 1, name);
2767 if (!priv->dfs_cac_workqueue) {
2768 mwifiex_dbg(adapter, ERROR,
2769 "cannot register virtual network device\n");
2770 free_netdev(dev);
2771 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2772 priv->netdev = NULL;
2773 memset(&priv->wdev, 0, sizeof(priv->wdev));
2774 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2775 return ERR_PTR(-ENOMEM);
2776 }
2777
2778 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
2779
2780 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2781 WQ_HIGHPRI | WQ_UNBOUND |
2782 WQ_MEM_RECLAIM, 1, name);
2783 if (!priv->dfs_chan_sw_workqueue) {
2784 mwifiex_dbg(adapter, ERROR,
2785 "cannot register virtual network device\n");
2786 free_netdev(dev);
2787 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2788 priv->netdev = NULL;
2789 memset(&priv->wdev, 0, sizeof(priv->wdev));
2790 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2791 return ERR_PTR(-ENOMEM);
2792 }
2793
2794 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
2795 mwifiex_dfs_chan_sw_work_queue);
2796
2797 sema_init(&priv->async_sem, 1);
2798
2799 mwifiex_dbg(adapter, INFO,
2800 "info: %s: Marvell 802.11 Adapter\n", dev->name);
2801
2802 #ifdef CONFIG_DEBUG_FS
2803 mwifiex_dev_debugfs_init(priv);
2804 #endif
2805
2806 switch (type) {
2807 case NL80211_IFTYPE_UNSPECIFIED:
2808 case NL80211_IFTYPE_STATION:
2809 case NL80211_IFTYPE_ADHOC:
2810 adapter->curr_iface_comb.sta_intf++;
2811 break;
2812 case NL80211_IFTYPE_AP:
2813 adapter->curr_iface_comb.uap_intf++;
2814 break;
2815 case NL80211_IFTYPE_P2P_CLIENT:
2816 adapter->curr_iface_comb.p2p_intf++;
2817 break;
2818 default:
2819 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2820 return ERR_PTR(-EINVAL);
2821 }
2822
2823 return &priv->wdev;
2824 }
2825 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2826
2827 /*
2828 * del_virtual_intf: remove the virtual interface determined by dev
2829 */
2830 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2831 {
2832 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2833 struct mwifiex_adapter *adapter = priv->adapter;
2834 struct sk_buff *skb, *tmp;
2835
2836 #ifdef CONFIG_DEBUG_FS
2837 mwifiex_dev_debugfs_remove(priv);
2838 #endif
2839
2840 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
2841
2842 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp)
2843 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
2844
2845 if (netif_carrier_ok(priv->netdev))
2846 netif_carrier_off(priv->netdev);
2847
2848 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2849 unregister_netdevice(wdev->netdev);
2850
2851 if (priv->dfs_cac_workqueue) {
2852 flush_workqueue(priv->dfs_cac_workqueue);
2853 destroy_workqueue(priv->dfs_cac_workqueue);
2854 priv->dfs_cac_workqueue = NULL;
2855 }
2856
2857 if (priv->dfs_chan_sw_workqueue) {
2858 flush_workqueue(priv->dfs_chan_sw_workqueue);
2859 destroy_workqueue(priv->dfs_chan_sw_workqueue);
2860 priv->dfs_chan_sw_workqueue = NULL;
2861 }
2862 /* Clear the priv in adapter */
2863 priv->netdev->ieee80211_ptr = NULL;
2864 priv->netdev = NULL;
2865 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2866
2867 priv->media_connected = false;
2868
2869 switch (priv->bss_mode) {
2870 case NL80211_IFTYPE_UNSPECIFIED:
2871 case NL80211_IFTYPE_STATION:
2872 case NL80211_IFTYPE_ADHOC:
2873 adapter->curr_iface_comb.sta_intf--;
2874 break;
2875 case NL80211_IFTYPE_AP:
2876 adapter->curr_iface_comb.uap_intf--;
2877 break;
2878 case NL80211_IFTYPE_P2P_CLIENT:
2879 case NL80211_IFTYPE_P2P_GO:
2880 adapter->curr_iface_comb.p2p_intf--;
2881 break;
2882 default:
2883 mwifiex_dbg(adapter, ERROR,
2884 "del_virtual_intf: type not supported\n");
2885 break;
2886 }
2887
2888 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2889
2890 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2891 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2892 kfree(priv->hist_data);
2893
2894 return 0;
2895 }
2896 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2897
2898 static bool
2899 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2900 u8 max_byte_seq)
2901 {
2902 int j, k, valid_byte_cnt = 0;
2903 bool dont_care_byte = false;
2904
2905 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2906 for (k = 0; k < 8; k++) {
2907 if (pat->mask[j] & 1 << k) {
2908 memcpy(byte_seq + valid_byte_cnt,
2909 &pat->pattern[j * 8 + k], 1);
2910 valid_byte_cnt++;
2911 if (dont_care_byte)
2912 return false;
2913 } else {
2914 if (valid_byte_cnt)
2915 dont_care_byte = true;
2916 }
2917
2918 if (valid_byte_cnt > max_byte_seq)
2919 return false;
2920 }
2921 }
2922
2923 byte_seq[max_byte_seq] = valid_byte_cnt;
2924
2925 return true;
2926 }
2927
2928 #ifdef CONFIG_PM
2929 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
2930 struct mwifiex_mef_entry *mef_entry)
2931 {
2932 int i, filt_num = 0, num_ipv4 = 0;
2933 struct in_device *in_dev;
2934 struct in_ifaddr *ifa;
2935 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
2936 struct mwifiex_adapter *adapter = priv->adapter;
2937
2938 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2939 mef_entry->action = MEF_ACTION_AUTO_ARP;
2940
2941 /* Enable ARP offload feature */
2942 memset(ips, 0, sizeof(ips));
2943 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
2944 if (adapter->priv[i]->netdev) {
2945 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
2946 if (!in_dev)
2947 continue;
2948 ifa = in_dev->ifa_list;
2949 if (!ifa || !ifa->ifa_local)
2950 continue;
2951 ips[i] = ifa->ifa_local;
2952 num_ipv4++;
2953 }
2954 }
2955
2956 for (i = 0; i < num_ipv4; i++) {
2957 if (!ips[i])
2958 continue;
2959 mef_entry->filter[filt_num].repeat = 1;
2960 memcpy(mef_entry->filter[filt_num].byte_seq,
2961 (u8 *)&ips[i], sizeof(ips[i]));
2962 mef_entry->filter[filt_num].
2963 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2964 sizeof(ips[i]);
2965 mef_entry->filter[filt_num].offset = 46;
2966 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2967 if (filt_num) {
2968 mef_entry->filter[filt_num].filt_action =
2969 TYPE_OR;
2970 }
2971 filt_num++;
2972 }
2973
2974 mef_entry->filter[filt_num].repeat = 1;
2975 mef_entry->filter[filt_num].byte_seq[0] = 0x08;
2976 mef_entry->filter[filt_num].byte_seq[1] = 0x06;
2977 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
2978 mef_entry->filter[filt_num].offset = 20;
2979 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2980 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2981 }
2982
2983 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
2984 struct mwifiex_ds_mef_cfg *mef_cfg,
2985 struct mwifiex_mef_entry *mef_entry,
2986 struct cfg80211_wowlan *wowlan)
2987 {
2988 int i, filt_num = 0, ret = 0;
2989 bool first_pat = true;
2990 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2991 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2992 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2993
2994 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2995 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2996
2997 for (i = 0; i < wowlan->n_patterns; i++) {
2998 memset(byte_seq, 0, sizeof(byte_seq));
2999 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3000 byte_seq,
3001 MWIFIEX_MEF_MAX_BYTESEQ)) {
3002 mwifiex_dbg(priv->adapter, ERROR,
3003 "Pattern not supported\n");
3004 return -EOPNOTSUPP;
3005 }
3006
3007 if (!wowlan->patterns[i].pkt_offset) {
3008 if (!(byte_seq[0] & 0x01) &&
3009 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3010 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3011 continue;
3012 } else if (is_broadcast_ether_addr(byte_seq)) {
3013 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3014 continue;
3015 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3016 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3017 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3018 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3019 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3020 continue;
3021 }
3022 }
3023 mef_entry->filter[filt_num].repeat = 1;
3024 mef_entry->filter[filt_num].offset =
3025 wowlan->patterns[i].pkt_offset;
3026 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3027 sizeof(byte_seq));
3028 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3029
3030 if (first_pat)
3031 first_pat = false;
3032 else
3033 mef_entry->filter[filt_num].filt_action = TYPE_AND;
3034
3035 filt_num++;
3036 }
3037
3038 if (wowlan->magic_pkt) {
3039 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3040 mef_entry->filter[filt_num].repeat = 16;
3041 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3042 ETH_ALEN);
3043 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3044 ETH_ALEN;
3045 mef_entry->filter[filt_num].offset = 28;
3046 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3047 if (filt_num)
3048 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3049
3050 filt_num++;
3051 mef_entry->filter[filt_num].repeat = 16;
3052 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3053 ETH_ALEN);
3054 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3055 ETH_ALEN;
3056 mef_entry->filter[filt_num].offset = 56;
3057 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3058 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3059 }
3060 return ret;
3061 }
3062
3063 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3064 struct cfg80211_wowlan *wowlan)
3065 {
3066 int ret = 0, num_entries = 1;
3067 struct mwifiex_ds_mef_cfg mef_cfg;
3068 struct mwifiex_mef_entry *mef_entry;
3069
3070 if (wowlan->n_patterns || wowlan->magic_pkt)
3071 num_entries++;
3072
3073 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3074 if (!mef_entry)
3075 return -ENOMEM;
3076
3077 memset(&mef_cfg, 0, sizeof(mef_cfg));
3078 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3079 MWIFIEX_CRITERIA_UNICAST;
3080 mef_cfg.num_entries = num_entries;
3081 mef_cfg.mef_entry = mef_entry;
3082
3083 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3084
3085 if (wowlan->n_patterns || wowlan->magic_pkt) {
3086 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3087 &mef_entry[1], wowlan);
3088 if (ret)
3089 goto err;
3090 }
3091
3092 if (!mef_cfg.criteria)
3093 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3094 MWIFIEX_CRITERIA_UNICAST |
3095 MWIFIEX_CRITERIA_MULTICAST;
3096
3097 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3098 HostCmd_ACT_GEN_SET, 0,
3099 &mef_cfg, true);
3100
3101 err:
3102 kfree(mef_entry);
3103 return ret;
3104 }
3105
3106 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3107 struct cfg80211_wowlan *wowlan)
3108 {
3109 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3110 struct mwifiex_ds_hs_cfg hs_cfg;
3111 int i, ret = 0;
3112 struct mwifiex_private *priv;
3113
3114 for (i = 0; i < adapter->priv_num; i++) {
3115 priv = adapter->priv[i];
3116 mwifiex_abort_cac(priv);
3117 }
3118
3119 mwifiex_cancel_all_pending_cmd(adapter);
3120
3121 if (!wowlan) {
3122 mwifiex_dbg(adapter, ERROR,
3123 "None of the WOWLAN triggers enabled\n");
3124 return 0;
3125 }
3126
3127 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3128
3129 if (!priv->media_connected) {
3130 mwifiex_dbg(adapter, ERROR,
3131 "Can not configure WOWLAN in disconnected state\n");
3132 return 0;
3133 }
3134
3135 ret = mwifiex_set_mef_filter(priv, wowlan);
3136 if (ret) {
3137 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3138 return ret;
3139 }
3140
3141 if (wowlan->disconnect) {
3142 memset(&hs_cfg, 0, sizeof(hs_cfg));
3143 hs_cfg.is_invoke_hostcmd = false;
3144 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
3145 hs_cfg.gpio = HS_CFG_GPIO_DEF;
3146 hs_cfg.gap = HS_CFG_GAP_DEF;
3147 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
3148 MWIFIEX_SYNC_CMD, &hs_cfg);
3149 if (ret) {
3150 mwifiex_dbg(adapter, ERROR,
3151 "Failed to set HS params\n");
3152 return ret;
3153 }
3154 }
3155
3156 return ret;
3157 }
3158
3159 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3160 {
3161 return 0;
3162 }
3163
3164 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3165 bool enabled)
3166 {
3167 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3168
3169 device_set_wakeup_enable(adapter->dev, enabled);
3170 }
3171 #endif
3172
3173 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3174 {
3175 const u8 ipv4_mc_mac[] = {0x33, 0x33};
3176 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3177 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3178
3179 if ((byte_seq[0] & 0x01) &&
3180 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3181 return PACKET_TYPE_UNICAST;
3182 else if (!memcmp(byte_seq, bc_mac, 4))
3183 return PACKET_TYPE_BROADCAST;
3184 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3185 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3186 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3187 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3188 return PACKET_TYPE_MULTICAST;
3189
3190 return 0;
3191 }
3192
3193 static int
3194 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3195 struct cfg80211_coalesce_rules *crule,
3196 struct mwifiex_coalesce_rule *mrule)
3197 {
3198 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3199 struct filt_field_param *param;
3200 int i;
3201
3202 mrule->max_coalescing_delay = crule->delay;
3203
3204 param = mrule->params;
3205
3206 for (i = 0; i < crule->n_patterns; i++) {
3207 memset(byte_seq, 0, sizeof(byte_seq));
3208 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3209 byte_seq,
3210 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3211 mwifiex_dbg(priv->adapter, ERROR,
3212 "Pattern not supported\n");
3213 return -EOPNOTSUPP;
3214 }
3215
3216 if (!crule->patterns[i].pkt_offset) {
3217 u8 pkt_type;
3218
3219 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3220 if (pkt_type && mrule->pkt_type) {
3221 mwifiex_dbg(priv->adapter, ERROR,
3222 "Multiple packet types not allowed\n");
3223 return -EOPNOTSUPP;
3224 } else if (pkt_type) {
3225 mrule->pkt_type = pkt_type;
3226 continue;
3227 }
3228 }
3229
3230 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3231 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3232 else
3233 param->operation = RECV_FILTER_MATCH_TYPE_NE;
3234
3235 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3236 memcpy(param->operand_byte_stream, byte_seq,
3237 param->operand_len);
3238 param->offset = crule->patterns[i].pkt_offset;
3239 param++;
3240
3241 mrule->num_of_fields++;
3242 }
3243
3244 if (!mrule->pkt_type) {
3245 mwifiex_dbg(priv->adapter, ERROR,
3246 "Packet type can not be determined\n");
3247 return -EOPNOTSUPP;
3248 }
3249
3250 return 0;
3251 }
3252
3253 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3254 struct cfg80211_coalesce *coalesce)
3255 {
3256 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3257 int i, ret;
3258 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3259 struct mwifiex_private *priv =
3260 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3261
3262 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3263 if (!coalesce) {
3264 mwifiex_dbg(adapter, WARN,
3265 "Disable coalesce and reset all previous rules\n");
3266 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3267 HostCmd_ACT_GEN_SET, 0,
3268 &coalesce_cfg, true);
3269 }
3270
3271 coalesce_cfg.num_of_rules = coalesce->n_rules;
3272 for (i = 0; i < coalesce->n_rules; i++) {
3273 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3274 &coalesce_cfg.rule[i]);
3275 if (ret) {
3276 mwifiex_dbg(adapter, ERROR,
3277 "Recheck the patterns provided for rule %d\n",
3278 i + 1);
3279 return ret;
3280 }
3281 }
3282
3283 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3284 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3285 }
3286
3287 /* cfg80211 ops handler for tdls_mgmt.
3288 * Function prepares TDLS action frame packets and forwards them to FW
3289 */
3290 static int
3291 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3292 const u8 *peer, u8 action_code, u8 dialog_token,
3293 u16 status_code, u32 peer_capability,
3294 bool initiator, const u8 *extra_ies,
3295 size_t extra_ies_len)
3296 {
3297 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3298 int ret;
3299
3300 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3301 return -ENOTSUPP;
3302
3303 /* make sure we are in station mode and connected */
3304 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3305 return -ENOTSUPP;
3306
3307 switch (action_code) {
3308 case WLAN_TDLS_SETUP_REQUEST:
3309 mwifiex_dbg(priv->adapter, MSG,
3310 "Send TDLS Setup Request to %pM status_code=%d\n",
3311 peer, status_code);
3312 mwifiex_add_auto_tdls_peer(priv, peer);
3313 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3314 dialog_token, status_code,
3315 extra_ies, extra_ies_len);
3316 break;
3317 case WLAN_TDLS_SETUP_RESPONSE:
3318 mwifiex_add_auto_tdls_peer(priv, peer);
3319 mwifiex_dbg(priv->adapter, MSG,
3320 "Send TDLS Setup Response to %pM status_code=%d\n",
3321 peer, status_code);
3322 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3323 dialog_token, status_code,
3324 extra_ies, extra_ies_len);
3325 break;
3326 case WLAN_TDLS_SETUP_CONFIRM:
3327 mwifiex_dbg(priv->adapter, MSG,
3328 "Send TDLS Confirm to %pM status_code=%d\n", peer,
3329 status_code);
3330 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3331 dialog_token, status_code,
3332 extra_ies, extra_ies_len);
3333 break;
3334 case WLAN_TDLS_TEARDOWN:
3335 mwifiex_dbg(priv->adapter, MSG,
3336 "Send TDLS Tear down to %pM\n", peer);
3337 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3338 dialog_token, status_code,
3339 extra_ies, extra_ies_len);
3340 break;
3341 case WLAN_TDLS_DISCOVERY_REQUEST:
3342 mwifiex_dbg(priv->adapter, MSG,
3343 "Send TDLS Discovery Request to %pM\n", peer);
3344 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3345 dialog_token, status_code,
3346 extra_ies, extra_ies_len);
3347 break;
3348 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3349 mwifiex_dbg(priv->adapter, MSG,
3350 "Send TDLS Discovery Response to %pM\n", peer);
3351 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3352 dialog_token, status_code,
3353 extra_ies, extra_ies_len);
3354 break;
3355 default:
3356 mwifiex_dbg(priv->adapter, ERROR,
3357 "Unknown TDLS mgmt/action frame %pM\n", peer);
3358 ret = -EINVAL;
3359 break;
3360 }
3361
3362 return ret;
3363 }
3364
3365 static int
3366 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3367 const u8 *peer, enum nl80211_tdls_operation action)
3368 {
3369 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3370
3371 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3372 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3373 return -ENOTSUPP;
3374
3375 /* make sure we are in station mode and connected */
3376 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3377 return -ENOTSUPP;
3378
3379 mwifiex_dbg(priv->adapter, MSG,
3380 "TDLS peer=%pM, oper=%d\n", peer, action);
3381
3382 switch (action) {
3383 case NL80211_TDLS_ENABLE_LINK:
3384 action = MWIFIEX_TDLS_ENABLE_LINK;
3385 break;
3386 case NL80211_TDLS_DISABLE_LINK:
3387 action = MWIFIEX_TDLS_DISABLE_LINK;
3388 break;
3389 case NL80211_TDLS_TEARDOWN:
3390 /* shouldn't happen!*/
3391 mwifiex_dbg(priv->adapter, ERROR,
3392 "tdls_oper: teardown from driver not supported\n");
3393 return -EINVAL;
3394 case NL80211_TDLS_SETUP:
3395 /* shouldn't happen!*/
3396 mwifiex_dbg(priv->adapter, ERROR,
3397 "tdls_oper: setup from driver not supported\n");
3398 return -EINVAL;
3399 case NL80211_TDLS_DISCOVERY_REQ:
3400 /* shouldn't happen!*/
3401 mwifiex_dbg(priv->adapter, ERROR,
3402 "tdls_oper: discovery from driver not supported\n");
3403 return -EINVAL;
3404 default:
3405 mwifiex_dbg(priv->adapter, ERROR,
3406 "tdls_oper: operation not supported\n");
3407 return -ENOTSUPP;
3408 }
3409
3410 return mwifiex_tdls_oper(priv, peer, action);
3411 }
3412
3413 static int
3414 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3415 const u8 *addr, u8 oper_class,
3416 struct cfg80211_chan_def *chandef)
3417 {
3418 struct mwifiex_sta_node *sta_ptr;
3419 unsigned long flags;
3420 u16 chan;
3421 u8 second_chan_offset, band;
3422 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3423
3424 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3425 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3426 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3427
3428 if (!sta_ptr) {
3429 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3430 __func__, addr);
3431 return -ENOENT;
3432 }
3433
3434 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3435 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3436 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3437 return -ENOENT;
3438 }
3439
3440 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3441 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3442 wiphy_err(wiphy, "channel switch is running, abort request\n");
3443 return -EALREADY;
3444 }
3445
3446 chan = chandef->chan->hw_value;
3447 second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3448 band = chandef->chan->band;
3449 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3450
3451 return 0;
3452 }
3453
3454 static void
3455 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3456 struct net_device *dev,
3457 const u8 *addr)
3458 {
3459 struct mwifiex_sta_node *sta_ptr;
3460 unsigned long flags;
3461 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3462
3463 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3464 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3465 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3466
3467 if (!sta_ptr) {
3468 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3469 __func__, addr);
3470 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3471 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3472 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3473 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3474 addr);
3475 } else
3476 mwifiex_stop_tdls_cs(priv, addr);
3477 }
3478
3479 static int
3480 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3481 const u8 *mac, struct station_parameters *params)
3482 {
3483 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3484
3485 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3486 return -ENOTSUPP;
3487
3488 /* make sure we are in station mode and connected */
3489 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3490 return -ENOTSUPP;
3491
3492 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3493 }
3494
3495 static int
3496 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3497 struct cfg80211_csa_settings *params)
3498 {
3499 struct ieee_types_header *chsw_ie;
3500 struct ieee80211_channel_sw_ie *channel_sw;
3501 int chsw_msec;
3502 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3503
3504 if (priv->adapter->scan_processing) {
3505 mwifiex_dbg(priv->adapter, ERROR,
3506 "radar detection: scan in process...\n");
3507 return -EBUSY;
3508 }
3509
3510 if (priv->wdev.cac_started)
3511 return -EBUSY;
3512
3513 if (cfg80211_chandef_identical(&params->chandef,
3514 &priv->dfs_chandef))
3515 return -EINVAL;
3516
3517 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3518 params->beacon_csa.tail,
3519 params->beacon_csa.tail_len);
3520 if (!chsw_ie) {
3521 mwifiex_dbg(priv->adapter, ERROR,
3522 "Could not parse channel switch announcement IE\n");
3523 return -EINVAL;
3524 }
3525
3526 channel_sw = (void *)(chsw_ie + 1);
3527 if (channel_sw->mode) {
3528 if (netif_carrier_ok(priv->netdev))
3529 netif_carrier_off(priv->netdev);
3530 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3531 }
3532
3533 if (mwifiex_del_mgmt_ies(priv))
3534 mwifiex_dbg(priv->adapter, ERROR,
3535 "Failed to delete mgmt IEs!\n");
3536
3537 if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3538 mwifiex_dbg(priv->adapter, ERROR,
3539 "%s: setting mgmt ies failed\n", __func__);
3540 return -EFAULT;
3541 }
3542
3543 memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3544 memcpy(&priv->beacon_after, &params->beacon_after,
3545 sizeof(priv->beacon_after));
3546
3547 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3548 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3549 msecs_to_jiffies(chsw_msec));
3550 return 0;
3551 }
3552
3553 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3554 struct wireless_dev *wdev,
3555 struct cfg80211_chan_def *chandef)
3556 {
3557 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3558 struct mwifiex_bssdescriptor *curr_bss;
3559 struct ieee80211_channel *chan;
3560 u8 second_chan_offset;
3561 enum nl80211_channel_type chan_type;
3562 enum ieee80211_band band;
3563 int freq;
3564 int ret = -ENODATA;
3565
3566 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3567 cfg80211_chandef_valid(&priv->bss_chandef)) {
3568 *chandef = priv->bss_chandef;
3569 ret = 0;
3570 } else if (priv->media_connected) {
3571 curr_bss = &priv->curr_bss_params.bss_descriptor;
3572 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3573 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3574 chan = ieee80211_get_channel(wiphy, freq);
3575
3576 if (curr_bss->bcn_ht_oper) {
3577 second_chan_offset = curr_bss->bcn_ht_oper->ht_param &
3578 IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
3579 chan_type = mwifiex_sec_chan_offset_to_chan_type
3580 (second_chan_offset);
3581 cfg80211_chandef_create(chandef, chan, chan_type);
3582 } else {
3583 cfg80211_chandef_create(chandef, chan,
3584 NL80211_CHAN_NO_HT);
3585 }
3586 ret = 0;
3587 }
3588
3589 return ret;
3590 }
3591
3592 static int
3593 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
3594 struct net_device *dev,
3595 struct cfg80211_chan_def *chandef,
3596 u32 cac_time_ms)
3597 {
3598 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3599 struct mwifiex_radar_params radar_params;
3600
3601 if (priv->adapter->scan_processing) {
3602 mwifiex_dbg(priv->adapter, ERROR,
3603 "radar detection: scan already in process...\n");
3604 return -EBUSY;
3605 }
3606
3607 if (!mwifiex_is_11h_active(priv)) {
3608 mwifiex_dbg(priv->adapter, INFO,
3609 "Enable 11h extensions in FW\n");
3610 if (mwifiex_11h_activate(priv, true)) {
3611 mwifiex_dbg(priv->adapter, ERROR,
3612 "Failed to activate 11h extensions!!");
3613 return -1;
3614 }
3615 priv->state_11h.is_11h_active = true;
3616 }
3617
3618 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
3619 radar_params.chandef = chandef;
3620 radar_params.cac_time_ms = cac_time_ms;
3621
3622 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
3623
3624 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
3625 HostCmd_ACT_GEN_SET, 0, &radar_params, true))
3626 return -1;
3627
3628 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
3629 msecs_to_jiffies(cac_time_ms));
3630 return 0;
3631 }
3632
3633 static int
3634 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
3635 const u8 *mac,
3636 struct station_parameters *params)
3637 {
3638 int ret;
3639 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3640
3641 /* we support change_station handler only for TDLS peers*/
3642 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3643 return -ENOTSUPP;
3644
3645 /* make sure we are in station mode and connected */
3646 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3647 return -ENOTSUPP;
3648
3649 priv->sta_params = params;
3650
3651 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
3652 priv->sta_params = NULL;
3653
3654 return ret;
3655 }
3656
3657 /* station cfg80211 operations */
3658 static struct cfg80211_ops mwifiex_cfg80211_ops = {
3659 .add_virtual_intf = mwifiex_add_virtual_intf,
3660 .del_virtual_intf = mwifiex_del_virtual_intf,
3661 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
3662 .scan = mwifiex_cfg80211_scan,
3663 .connect = mwifiex_cfg80211_connect,
3664 .disconnect = mwifiex_cfg80211_disconnect,
3665 .get_station = mwifiex_cfg80211_get_station,
3666 .dump_station = mwifiex_cfg80211_dump_station,
3667 .dump_survey = mwifiex_cfg80211_dump_survey,
3668 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
3669 .join_ibss = mwifiex_cfg80211_join_ibss,
3670 .leave_ibss = mwifiex_cfg80211_leave_ibss,
3671 .add_key = mwifiex_cfg80211_add_key,
3672 .del_key = mwifiex_cfg80211_del_key,
3673 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
3674 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
3675 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
3676 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
3677 .set_default_key = mwifiex_cfg80211_set_default_key,
3678 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
3679 .set_tx_power = mwifiex_cfg80211_set_tx_power,
3680 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
3681 .start_ap = mwifiex_cfg80211_start_ap,
3682 .stop_ap = mwifiex_cfg80211_stop_ap,
3683 .change_beacon = mwifiex_cfg80211_change_beacon,
3684 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
3685 .set_antenna = mwifiex_cfg80211_set_antenna,
3686 .del_station = mwifiex_cfg80211_del_station,
3687 #ifdef CONFIG_PM
3688 .suspend = mwifiex_cfg80211_suspend,
3689 .resume = mwifiex_cfg80211_resume,
3690 .set_wakeup = mwifiex_cfg80211_set_wakeup,
3691 #endif
3692 .set_coalesce = mwifiex_cfg80211_set_coalesce,
3693 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
3694 .tdls_oper = mwifiex_cfg80211_tdls_oper,
3695 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
3696 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
3697 .add_station = mwifiex_cfg80211_add_station,
3698 .change_station = mwifiex_cfg80211_change_station,
3699 .get_channel = mwifiex_cfg80211_get_channel,
3700 .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
3701 .channel_switch = mwifiex_cfg80211_channel_switch,
3702 };
3703
3704 #ifdef CONFIG_PM
3705 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
3706 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
3707 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
3708 .pattern_min_len = 1,
3709 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3710 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3711 };
3712 #endif
3713
3714 static bool mwifiex_is_valid_alpha2(const char *alpha2)
3715 {
3716 if (!alpha2 || strlen(alpha2) != 2)
3717 return false;
3718
3719 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
3720 return true;
3721
3722 return false;
3723 }
3724
3725 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
3726 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
3727 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
3728 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
3729 .pattern_min_len = 1,
3730 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3731 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3732 };
3733
3734 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
3735 {
3736 u32 n_channels_bg, n_channels_a = 0;
3737
3738 n_channels_bg = mwifiex_band_2ghz.n_channels;
3739
3740 if (adapter->config_bands & BAND_A)
3741 n_channels_a = mwifiex_band_5ghz.n_channels;
3742
3743 adapter->num_in_chan_stats = n_channels_bg + n_channels_a;
3744 adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
3745 adapter->num_in_chan_stats);
3746
3747 if (!adapter->chan_stats)
3748 return -ENOMEM;
3749
3750 return 0;
3751 }
3752
3753 /*
3754 * This function registers the device with CFG802.11 subsystem.
3755 *
3756 * The function creates the wireless device/wiphy, populates it with
3757 * default parameters and handler function pointers, and finally
3758 * registers the device.
3759 */
3760
3761 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
3762 {
3763 int ret;
3764 void *wdev_priv;
3765 struct wiphy *wiphy;
3766 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
3767 u8 *country_code;
3768 u32 thr, retry;
3769
3770 /* create a new wiphy for use with cfg80211 */
3771 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
3772 sizeof(struct mwifiex_adapter *));
3773 if (!wiphy) {
3774 mwifiex_dbg(adapter, ERROR,
3775 "%s: creating new wiphy\n", __func__);
3776 return -ENOMEM;
3777 }
3778 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
3779 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
3780 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
3781 wiphy->max_remain_on_channel_duration = 5000;
3782 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3783 BIT(NL80211_IFTYPE_ADHOC) |
3784 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3785 BIT(NL80211_IFTYPE_P2P_GO) |
3786 BIT(NL80211_IFTYPE_AP);
3787
3788 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
3789 if (adapter->config_bands & BAND_A)
3790 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
3791 else
3792 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
3793
3794 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
3795 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
3796 else if (adapter->is_hw_11ac_capable)
3797 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
3798 else
3799 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
3800 wiphy->n_iface_combinations = 1;
3801
3802 /* Initialize cipher suits */
3803 wiphy->cipher_suites = mwifiex_cipher_suites;
3804 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
3805
3806 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
3807 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3808 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
3809 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
3810 WIPHY_FLAG_AP_UAPSD |
3811 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3812 WIPHY_FLAG_HAS_CHANNEL_SWITCH |
3813 WIPHY_FLAG_PS_ON_BY_DEFAULT;
3814
3815 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3816 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3817 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
3818
3819 #ifdef CONFIG_PM
3820 wiphy->wowlan = &mwifiex_wowlan_support;
3821 #endif
3822
3823 wiphy->coalesce = &mwifiex_coalesce_support;
3824
3825 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3826 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3827 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3828
3829 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
3830 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3831
3832 wiphy->features |= NL80211_FEATURE_HT_IBSS |
3833 NL80211_FEATURE_INACTIVITY_TIMER |
3834 NL80211_FEATURE_NEED_OBSS_SCAN;
3835
3836 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3837 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
3838
3839 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3840 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3841
3842 /* Reserve space for mwifiex specific private data for BSS */
3843 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3844
3845 wiphy->reg_notifier = mwifiex_reg_notifier;
3846
3847 /* Set struct mwifiex_adapter pointer in wiphy_priv */
3848 wdev_priv = wiphy_priv(wiphy);
3849 *(unsigned long *)wdev_priv = (unsigned long)adapter;
3850
3851 set_wiphy_dev(wiphy, priv->adapter->dev);
3852
3853 ret = wiphy_register(wiphy);
3854 if (ret < 0) {
3855 mwifiex_dbg(adapter, ERROR,
3856 "%s: wiphy_register failed: %d\n", __func__, ret);
3857 wiphy_free(wiphy);
3858 return ret;
3859 }
3860
3861 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3862 mwifiex_dbg(adapter, INFO,
3863 "driver hint alpha2: %2.2s\n", reg_alpha2);
3864 regulatory_hint(wiphy, reg_alpha2);
3865 } else {
3866 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3867 if (country_code)
3868 mwifiex_dbg(adapter, WARN,
3869 "ignoring F/W country code %2.2s\n",
3870 country_code);
3871 }
3872
3873 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3874 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3875 wiphy->frag_threshold = thr;
3876 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3877 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3878 wiphy->rts_threshold = thr;
3879 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3880 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3881 wiphy->retry_short = (u8) retry;
3882 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3883 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3884 wiphy->retry_long = (u8) retry;
3885
3886 adapter->wiphy = wiphy;
3887 return ret;
3888 }
Linux with added FPC-III support